Mercurial > octave-nkf
annotate libinterp/dldfcn/__magick_read__.cc @ 17373:8508b8ae46a8
imread: fix identification of PNG files as indexed.
* __magick_read__.cc (is_indexed): expand extra check for PNG files by
confirming value in color_type_orig.
(get_depth): only fix indentification as binary for depth of 8. When
Magick reports different than 1 for binary images, seems to always
change it for 8, not anything else different than 1.
author | Carnë Draug <carandraug@octave.org> |
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date | Wed, 04 Sep 2013 22:21:08 +0100 |
parents | 63b53ea33a8b |
children | b76b14e386b3 |
rev | line source |
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1 /* |
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2 |
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3 Copyright (C) 2013 Carnë Draug |
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4 Copyright (C) 2002-2012 Andy Adler |
7932 | 5 Copyright (C) 2008 Thomas L. Scofield |
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6 Copyright (C) 2010 David Grundberg |
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7 |
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8 This file is part of Octave. |
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9 |
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10 Octave is free software; you can redistribute it and/or modify it |
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11 under the terms of the GNU General Public License as published by the |
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12 Free Software Foundation; either version 3 of the License, or (at your |
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13 option) any later version. |
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14 |
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15 Octave is distributed in the hope that it will be useful, but WITHOUT |
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16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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18 for more details. |
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19 |
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20 You should have received a copy of the GNU General Public License |
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21 along with Octave; see the file COPYING. If not, see |
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22 <http://www.gnu.org/licenses/>. |
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23 |
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24 */ |
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25 |
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26 #ifdef HAVE_CONFIG_H |
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27 #include <config.h> |
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28 #endif |
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29 |
8054 | 30 #include <cmath> |
31 | |
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32 #include "file-stat.h" |
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33 #include "oct-env.h" |
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34 #include "oct-time.h" |
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35 |
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36 #include "defun-dld.h" |
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37 #include "error.h" |
8054 | 38 #include "ov-struct.h" |
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39 |
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40 #include "gripes.h" |
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41 |
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42 #ifdef HAVE_MAGICK |
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43 |
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44 #include <Magick++.h> |
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45 #include <clocale> |
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46 |
17350 | 47 // In theory, it should be enough to check the class: |
48 // Magick::ClassType | |
49 // PseudoClass: | |
50 // Image is composed of pixels which specify an index in a color palette. | |
51 // DirectClass: | |
52 // Image is composed of pixels which represent literal color values. | |
53 // | |
54 // GraphicsMagick does not really distinguishes between indexed and | |
55 // normal images. After reading a file, it decides itself the optimal | |
56 // way to store the image in memory, independently of the how the | |
57 // image was stored in the file. That's what ClassType returns. While | |
58 // it seems to match the original file most of the times, this is | |
59 // not necessarily true all the times. See | |
60 // https://sourceforge.net/mailarchive/message.php?msg_id=31180507 | |
61 // In addition to the ClassType, there is also ImageType which has a | |
62 // type for indexed images (PaletteType and PaletteMatteType). However, | |
63 // they also don't represent the original image. Not only does DirectClass | |
64 // can have a PaletteType, but also does a PseudoClass have non Palette | |
65 // types. | |
66 // | |
67 // We can't do better without having format specific code which is | |
68 // what we are trying to avoid by using a library such as GM. We at | |
69 // least create workarounds for the most common problems. | |
70 // | |
71 // 1) A grayscale jpeg image can report being indexed even though the | |
72 // JPEG format has no support for indexed images. We can at least | |
73 // fix this one. | |
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74 // 2) A PNG file is only an indexed image if color type orig is 3 (value comes |
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75 // from libpng) |
17350 | 76 static bool |
77 is_indexed (const Magick::Image& img) | |
78 { | |
79 bool retval = false; | |
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80 const std::string format = img.magick (); |
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81 if (img.classType () == Magick::PseudoClass |
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82 && format != "JPEG" |
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83 && (format != "PNG" |
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84 || const_cast<Magick::Image&> (img).attribute ("PNG:IHDR.color-type-orig") == "3")) |
17350 | 85 retval = true; |
86 | |
87 return retval; | |
88 } | |
89 | |
90 // The depth from depth() is not always correct for us but seems to be the | |
91 // best value we can get. For example, a grayscale png image with 1 bit | |
92 // per channel should return a depth of 1 but instead we get 8. | |
93 // We could check channelDepth() but then, which channel has the data | |
94 // is not straightforward. So we'd have to check all | |
95 // the channels and select the highest value. But then, I also | |
96 // have a 16bit TIFF whose depth returns 16 (correct), but all of the | |
97 // channels gives 8 (wrong). No idea why, maybe a bug in GM? | |
98 // Anyway, using depth() seems that only causes problems for binary | |
99 // images, and the problem with channelDepth() is not making set them | |
100 // all to 1. So we will guess that if all channels have depth of 1, | |
101 // then we must have a binary image. | |
102 // Note that we can't use AllChannels it doesn't work for this. | |
103 // Instead of checking all of the individual channels, we check one | |
104 // from RGB, CMYK, grayscale, and transparency. | |
105 static octave_idx_type | |
106 get_depth (Magick::Image& img) | |
107 { | |
108 octave_idx_type depth = img.depth (); | |
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109 if (depth == 8 |
17350 | 110 && img.channelDepth (Magick::RedChannel) == 1 |
111 && img.channelDepth (Magick::CyanChannel) == 1 | |
112 && img.channelDepth (Magick::OpacityChannel) == 1 | |
113 && img.channelDepth (Magick::GrayChannel) == 1) | |
114 depth = 1; | |
115 | |
116 return depth; | |
117 } | |
118 | |
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119 // We need this in case one of the sides of the image being read has |
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120 // width 1. In those cases, the type will come as scalar instead of range |
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121 // since that's the behaviour of the colon operator (1:1:1 will be a scalar, |
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122 // not a range). |
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123 static Range |
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124 get_region_range (const octave_value& region) |
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125 { |
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126 Range output; |
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127 if (region.is_range ()) |
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128 output = region.range_value (); |
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129 else if (region.is_scalar_type ()) |
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130 { |
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131 double value = region.scalar_value (); |
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132 output = Range (value, value); |
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133 } |
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134 else |
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135 error ("__magick_read__: unknow datatype for Region option"); |
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136 |
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137 return output; |
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138 } |
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139 |
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140 static std::map<std::string, octave_idx_type> |
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141 calculate_region (const octave_scalar_map& options) |
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142 { |
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143 std::map<std::string, octave_idx_type> region; |
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144 const Cell pixel_region = options.getfield ("region").cell_value (); |
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145 |
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146 // Subtract 1 to account for 0 indexing. |
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147 const Range rows = get_region_range (pixel_region (0)); |
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148 const Range cols = get_region_range (pixel_region (1)); |
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149 region["row_start"] = rows.base () -1; |
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150 region["col_start"] = cols.base () -1; |
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151 region["row_end"] = rows.max () -1; |
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152 region["col_end"] = cols.max () -1; |
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153 |
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154 // Length of the area to load into the Image Pixel Cache. We use max and |
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155 // min to account for cases where last element of range is the range limit. |
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156 region["row_cache"] = region["row_end"] - region["row_start"] +1; |
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157 region["col_cache"] = region["col_end"] - region["col_start"] +1; |
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158 |
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159 // How much we have to shift in the memory when doing the loops. |
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160 region["row_shift"] = region["col_cache"] * rows.inc (); |
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161 region["col_shift"] = region["col_cache"] * |
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162 (region["row_cache"] + rows.inc () -1) - cols.inc (); |
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163 |
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164 // The actual height and width of the output image |
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165 region["row_out"] = rows.nelem (); |
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166 region["col_out"] = cols.nelem (); |
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167 |
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168 return region; |
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169 } |
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170 |
17350 | 171 static octave_value_list |
172 read_maps (Magick::Image& img) | |
173 { | |
174 // can't call colorMapSize on const Magick::Image | |
175 const octave_idx_type mapsize = img.colorMapSize (); | |
176 Matrix cmap = Matrix (mapsize, 3); // colormap | |
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177 ColumnVector amap = ColumnVector (mapsize); // alpha map |
17350 | 178 for (octave_idx_type i = 0; i < mapsize; i++) |
179 { | |
180 const Magick::ColorRGB c = img.colorMap (i); | |
181 cmap(i,0) = c.red (); | |
182 cmap(i,1) = c.green (); | |
183 cmap(i,2) = c.blue (); | |
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184 amap(i) = c.alpha (); |
17350 | 185 } |
186 octave_value_list maps; | |
187 maps(0) = cmap; | |
188 maps(1) = amap; | |
189 return maps; | |
190 } | |
191 | |
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192 template <class T> |
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193 static octave_value_list |
17350 | 194 read_indexed_images (const std::vector<Magick::Image>& imvec, |
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195 const Array<octave_idx_type>& frameidx, |
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196 const octave_idx_type& nargout, |
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197 const octave_scalar_map& options) |
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198 { |
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199 typedef typename T::element_type P; |
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200 |
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201 octave_value_list retval (3, Matrix ()); |
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202 |
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203 std::map<std::string, octave_idx_type> region = calculate_region (options); |
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204 const octave_idx_type nFrames = frameidx.length (); |
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205 const octave_idx_type nRows = region["row_out"]; |
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206 const octave_idx_type nCols = region["col_out"]; |
8054 | 207 |
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208 // imvec has all of the pages of a file, even the ones we are not |
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209 // interested in. We will use the first image that we will be actually |
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210 // reading to get information about the image. |
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211 const octave_idx_type def_elem = frameidx(0); |
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212 |
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213 T img = T (dim_vector (nRows, nCols, 1, nFrames)); |
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214 P* img_fvec = img.fortran_vec (); |
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215 |
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216 const octave_idx_type row_start = region["row_start"]; |
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217 const octave_idx_type col_start = region["col_start"]; |
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218 const octave_idx_type row_shift = region["row_shift"]; |
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219 const octave_idx_type col_shift = region["col_shift"]; |
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220 const octave_idx_type row_cache = region["row_cache"]; |
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221 const octave_idx_type col_cache = region["col_cache"]; |
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222 |
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223 // When reading PixelPackets from the Image Pixel Cache, they come in |
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224 // row major order. So we keep moving back and forth there so we can |
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225 // write the image in column major order. |
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226 octave_idx_type idx = 0; |
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227 for (octave_idx_type frame = 0; frame < nFrames; frame++) |
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228 { |
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229 imvec[frameidx(frame)].getConstPixels (col_start, row_start, |
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230 col_cache, row_cache); |
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231 |
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232 const Magick::IndexPacket *pix |
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233 = imvec[frameidx(frame)].getConstIndexes (); |
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234 |
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235 for (octave_idx_type col = 0; col < nCols; col++) |
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236 { |
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237 for (octave_idx_type row = 0; row < nRows; row++) |
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238 { |
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239 img_fvec[idx++] = static_cast<P> (*pix); |
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240 pix += row_shift; |
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241 } |
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242 pix -= col_shift; |
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243 } |
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244 } |
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245 retval(0) = octave_value (img); |
7933 | 246 |
17350 | 247 // Only bother reading the colormap if it was requested as output. |
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248 if (nargout > 1) |
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249 { |
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250 // In theory, it should be possible for each frame of an image to |
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251 // have different colormaps but for Matlab compatibility, we only |
17350 | 252 // return the colormap of the first frame. To obtain the colormaps |
253 // of different frames, one needs can either use imfinfo or a for | |
254 // loop around imread. | |
255 const octave_value_list maps = | |
256 read_maps (const_cast<Magick::Image&> (imvec[frameidx(def_elem)])); | |
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257 |
17350 | 258 retval(1) = maps(0); |
259 | |
260 // only interpret alpha channel if it exists and was requested as output | |
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261 if (imvec[def_elem].matte () && nargout >= 3) |
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262 { |
17350 | 263 const Matrix amap = maps(1).matrix_value (); |
264 const double* amap_fvec = amap.fortran_vec (); | |
7933 | 265 |
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266 NDArray alpha (dim_vector (nRows, nCols, 1, nFrames)); |
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267 double* alpha_fvec = alpha.fortran_vec (); |
7933 | 268 |
17350 | 269 // GraphicsMagick stores the alpha values inverted, i.e., |
270 // 1 for transparent and 0 for opaque so we fix that here. | |
271 const octave_idx_type nPixels = alpha.numel (); | |
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272 for (octave_idx_type pix = 0; pix < nPixels; pix++) |
17350 | 273 alpha_fvec[pix] = 1 - amap_fvec[static_cast<int> (img_fvec[3])]; |
274 | |
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275 retval(2) = alpha; |
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276 } |
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277 } |
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278 |
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279 return retval; |
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280 } |
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281 |
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282 // This function is highly repetitive, a bunch of for loops that are |
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283 // very similar to account for different image types. They are different |
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284 // enough that trying to reduce the copy and paste would decrease its |
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285 // readability too much. |
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286 template <class T> |
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287 octave_value_list |
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288 read_images (std::vector<Magick::Image>& imvec, |
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289 const Array<octave_idx_type>& frameidx, |
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290 const octave_idx_type& nargout, |
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291 const octave_scalar_map& options) |
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292 { |
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293 typedef typename T::element_type P; |
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294 |
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295 octave_value_list retval (3, Matrix ()); |
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296 |
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297 std::map<std::string, octave_idx_type> region = calculate_region (options); |
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298 const octave_idx_type nFrames = frameidx.length (); |
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299 const octave_idx_type nRows = region["row_out"]; |
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300 const octave_idx_type nCols = region["col_out"]; |
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301 T img; |
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302 |
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303 // imvec has all of the pages of a file, even the ones we are not |
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304 // interested in. We will use the first image that we will be actually |
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305 // reading to get information about the image. |
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306 const octave_idx_type def_elem = frameidx(0); |
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307 |
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308 const octave_idx_type row_start = region["row_start"]; |
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309 const octave_idx_type col_start = region["col_start"]; |
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310 const octave_idx_type row_shift = region["row_shift"]; |
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311 const octave_idx_type col_shift = region["col_shift"]; |
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312 const octave_idx_type row_cache = region["row_cache"]; |
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313 const octave_idx_type col_cache = region["col_cache"]; |
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314 |
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315 // GraphicsMagick (GM) keeps the image values in memory using whatever |
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316 // QuantumDepth it was built with independently of the original image |
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317 // bitdepth. Basically this means that if GM was built with quantum 16 |
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318 // all values are scaled in the uint16 range. If the original image |
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319 // had an 8 bit depth, we need to rescale it for that range. |
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320 // However, if the image had a bitdepth of 32, then we will be returning |
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321 // a floating point image. In this case, the values need to be rescaled |
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322 // for the range [0 1] (this is what Matlab has documented on the page |
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323 // about image types but in some cases seems to be doing something else. |
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324 // See bug #39249). |
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325 // Finally, we must do the division ourselves (set a divisor) instead of |
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326 // using quantumOperator for the cases where we will be returning floating |
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327 // point and want things in the range [0 1]. This is the same reason why |
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328 // the divisor is of type double. |
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329 // uint64_t is used in expression because default 32-bit value overflows |
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330 // when depth() is 32. |
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331 // TODO in the next release of GraphicsMagick, MaxRGB should be replaced |
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332 // with QuantumRange since MaxRGB is already deprecated in ImageMagick. |
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333 double divisor; |
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334 if (imvec[def_elem].depth () == 32) |
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335 divisor = std::numeric_limits<uint32_t>::max (); |
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336 else |
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337 divisor = MaxRGB / ((uint64_t (1) << imvec[def_elem].depth ()) - 1); |
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338 |
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339 // FIXME: this workaround should probably be fixed in GM by creating a |
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340 // new ImageType BilevelMatteType |
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341 // Despite what GM documentation claims, opacity is not only on the types |
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342 // with Matte on the name. It is possible that an image is completely |
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343 // black (1 color), and have a second channel set for transparency (2nd |
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344 // color). Its type will be bilevel since there is no BilevelMatte. The |
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345 // only way to check for this seems to be by checking matte (). |
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346 Magick::ImageType type = imvec[def_elem].type (); |
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347 if (type == Magick::BilevelType && imvec[def_elem].matte ()) |
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348 type = Magick::GrayscaleMatteType; |
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349 |
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350 // FIXME: ImageType is the type being used to represent the image in memory |
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351 // by GM. The real type may be different (see among others bug #36820). For |
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352 // example, a png file where all channels are equal may report being |
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353 // grayscale or even bilevel. But we must always return the real image in |
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354 // file. In some cases, the original image attributes are stored in the |
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355 // attributes but this is undocumented. This should be fixed in GM so that |
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356 // a method such as original_type returns an actual Magick::ImageType |
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357 if (imvec[0].magick () == "PNG") |
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358 { |
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359 // These values come from libpng, not GM: |
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360 // Grayscale = 0 |
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361 // Palette = 2 + 1 |
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362 // RGB = 2 |
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363 // RGB + Alpha = 2 + 4 |
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364 // Grayscale + Alpha = 4 |
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365 // We won't bother with case 3 (palette) since those should be |
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366 // read by the function to read indexed images |
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367 const std::string type_str = imvec[0].attribute ("PNG:IHDR.color-type-orig"); |
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368 if (type_str == "0") |
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369 type = Magick::GrayscaleType; |
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370 else if (type_str == "2") |
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371 type = Magick::TrueColorType; |
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372 else if (type_str == "6") |
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373 type = Magick::TrueColorMatteType; |
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374 else if (type_str == "4") |
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375 type = Magick::GrayscaleMatteType; |
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376 // Color types 0, 2, and 3 can also have alpha channel, conveyed |
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377 // via the "tRNS" chunk. For 0 and 2, it's limited to GIF-style |
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378 // binary transparency, while 3 can have any level of alpha per |
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379 // palette entry. We thus must check matte() to see if the image |
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380 // really doesn't have an alpha channel. |
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381 if (imvec[0].matte ()) |
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382 { |
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383 if (type == Magick::GrayscaleType) |
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384 type = Magick::GrayscaleMatteType; |
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385 else if (type == Magick::TrueColorType) |
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386 type = Magick::TrueColorMatteType; |
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387 } |
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388 } |
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389 |
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390 // If the alpha channel was not requested, treat images as if |
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391 // it doesn't exist. |
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392 if (nargout < 3) |
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393 { |
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394 switch (type) |
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395 { |
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396 case Magick::GrayscaleMatteType: |
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397 type = Magick::GrayscaleType; |
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398 break; |
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399 |
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400 case Magick::PaletteMatteType: |
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401 type = Magick::PaletteType; |
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402 break; |
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403 |
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404 case Magick::TrueColorMatteType: |
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405 type = Magick::TrueColorType; |
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406 break; |
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407 |
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408 case Magick::ColorSeparationMatteType: |
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409 type = Magick::ColorSeparationType; |
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410 break; |
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411 |
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412 default: |
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413 // Do nothing other than silencing warnings about enumeration |
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414 // values not being handled in switch. |
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415 ; |
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416 } |
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417 } |
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418 |
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419 switch (type) |
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420 { |
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421 case Magick::BilevelType: // Monochrome bi-level image |
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422 case Magick::GrayscaleType: // Grayscale image |
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423 { |
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424 img = T (dim_vector (nRows, nCols, 1, nFrames)); |
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425 P *img_fvec = img.fortran_vec (); |
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426 |
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427 octave_idx_type idx = 0; |
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428 for (octave_idx_type frame = 0; frame < nFrames; frame++) |
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429 { |
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430 const Magick::PixelPacket *pix |
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431 = imvec[frameidx(frame)].getConstPixels (col_start, row_start, |
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432 col_cache, row_cache); |
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433 |
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434 for (octave_idx_type col = 0; col < nCols; col++) |
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435 { |
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436 for (octave_idx_type row = 0; row < nRows; row++) |
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437 { |
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438 img_fvec[idx++] = pix->red / divisor; |
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439 pix += row_shift; |
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440 } |
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441 pix -= col_shift; |
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442 } |
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443 } |
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444 break; |
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445 } |
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446 |
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447 case Magick::GrayscaleMatteType: // Grayscale image with opacity |
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448 { |
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449 img = T (dim_vector (nRows, nCols, 1, nFrames)); |
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450 T alpha (dim_vector (nRows, nCols, 1, nFrames)); |
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451 P *img_fvec = img.fortran_vec (); |
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452 P *a_fvec = alpha.fortran_vec (); |
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453 |
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454 octave_idx_type idx = 0; |
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455 for (octave_idx_type frame = 0; frame < nFrames; frame++) |
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456 { |
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457 const Magick::PixelPacket *pix |
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458 = imvec[frameidx(frame)].getConstPixels (col_start, row_start, |
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459 col_cache, row_cache); |
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460 |
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461 for (octave_idx_type col = 0; col < nCols; col++) |
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462 { |
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463 for (octave_idx_type row = 0; row < nRows; row++) |
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464 { |
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465 img_fvec[idx] = pix->red / divisor; |
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466 a_fvec[idx] = (MaxRGB - pix->opacity) / divisor; |
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467 pix += row_shift; |
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468 idx++; |
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469 } |
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470 pix -= col_shift; |
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471 } |
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472 } |
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473 retval(2) = alpha; |
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474 break; |
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475 } |
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476 |
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477 case Magick::PaletteType: // Indexed color (palette) image |
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478 case Magick::TrueColorType: // Truecolor image |
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479 { |
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480 img = T (dim_vector (nRows, nCols, 3, nFrames)); |
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481 P *img_fvec = img.fortran_vec (); |
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482 |
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483 for (octave_idx_type frame = 0; frame < nFrames; frame++) |
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484 { |
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485 const Magick::PixelPacket *pix |
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486 = imvec[frameidx(frame)].getConstPixels (col_start, row_start, |
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487 col_cache, row_cache); |
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488 |
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489 octave_idx_type idx = 0; |
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490 img_fvec += nRows * nCols * frame; |
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491 P *rbuf = img_fvec; |
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492 P *gbuf = img_fvec + nRows * nCols; |
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493 P *bbuf = img_fvec + nRows * nCols * 2; |
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494 |
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495 for (octave_idx_type col = 0; col < nCols; col++) |
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496 { |
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497 for (octave_idx_type row = 0; row < nRows; row++) |
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498 { |
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499 rbuf[idx] = pix->red / divisor; |
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500 gbuf[idx] = pix->green / divisor; |
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501 bbuf[idx] = pix->blue / divisor; |
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502 pix += row_shift; |
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503 idx++; |
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504 } |
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505 pix -= col_shift; |
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506 } |
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507 } |
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508 break; |
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509 } |
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510 |
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511 case Magick::PaletteMatteType: // Indexed color (palette) image with opacity |
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512 case Magick::TrueColorMatteType: // Truecolor image with opacity |
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513 { |
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514 img = T (dim_vector (nRows, nCols, 3, nFrames)); |
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515 T alpha (dim_vector (nRows, nCols, 1, nFrames)); |
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516 P *img_fvec = img.fortran_vec (); |
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517 P *a_fvec = alpha.fortran_vec (); |
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518 |
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519 // Unlike the index for the other channels, this one won't need |
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520 // to be reset on each frame since it's a separate matrix. |
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521 octave_idx_type a_idx = 0; |
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522 for (octave_idx_type frame = 0; frame < nFrames; frame++) |
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523 { |
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524 const Magick::PixelPacket *pix |
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525 = imvec[frameidx(frame)].getConstPixels (col_start, row_start, |
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526 col_cache, row_cache); |
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527 |
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528 octave_idx_type idx = 0; |
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529 img_fvec += nRows * nCols * frame; |
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530 P *rbuf = img_fvec; |
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531 P *gbuf = img_fvec + nRows * nCols; |
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532 P *bbuf = img_fvec + nRows * nCols * 2; |
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533 |
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534 for (octave_idx_type col = 0; col < nCols; col++) |
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535 { |
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536 for (octave_idx_type row = 0; row < nRows; row++) |
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537 { |
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538 rbuf[idx] = pix->red / divisor; |
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539 gbuf[idx] = pix->green / divisor; |
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540 bbuf[idx] = pix->blue / divisor; |
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541 a_fvec[a_idx++] = (MaxRGB - pix->opacity) / divisor; |
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542 pix += row_shift; |
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543 idx++; |
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544 } |
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545 pix -= col_shift; |
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546 } |
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547 } |
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548 retval(2) = alpha; |
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549 break; |
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550 } |
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551 |
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552 case Magick::ColorSeparationType: // Cyan/Yellow/Magenta/Black (CYMK) image |
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553 { |
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554 img = T (dim_vector (nRows, nCols, 4, nFrames)); |
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555 P *img_fvec = img.fortran_vec (); |
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556 |
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557 for (octave_idx_type frame = 0; frame < nFrames; frame++) |
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558 { |
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559 const Magick::PixelPacket *pix |
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560 = imvec[frameidx(frame)].getConstPixels (col_start, row_start, |
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561 col_cache, row_cache); |
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562 |
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563 octave_idx_type idx = 0; |
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564 img_fvec += nRows * nCols * frame; |
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565 P *cbuf = img_fvec; |
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566 P *mbuf = img_fvec + nRows * nCols; |
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567 P *ybuf = img_fvec + nRows * nCols * 2; |
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568 P *kbuf = img_fvec + nRows * nCols * 3; |
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569 |
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570 for (octave_idx_type col = 0; col < nCols; col++) |
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571 { |
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572 for (octave_idx_type row = 0; row < nRows; row++) |
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573 { |
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574 cbuf[idx] = pix->red / divisor; |
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575 mbuf[idx] = pix->green / divisor; |
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576 ybuf[idx] = pix->blue / divisor; |
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577 kbuf[idx] = pix->opacity / divisor; |
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578 pix += row_shift; |
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579 idx++; |
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580 } |
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581 pix -= col_shift; |
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582 } |
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583 } |
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584 break; |
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585 } |
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586 |
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587 // Cyan, magenta, yellow, and black with alpha (opacity) channel |
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588 case Magick::ColorSeparationMatteType: |
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589 { |
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590 img = T (dim_vector (nRows, nCols, 4, nFrames)); |
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591 T alpha (dim_vector (nRows, nCols, 1, nFrames)); |
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592 P *img_fvec = img.fortran_vec (); |
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593 P *a_fvec = alpha.fortran_vec (); |
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594 |
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595 // Unlike the index for the other channels, this one won't need |
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596 // to be reset on each frame since it's a separate matrix. |
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597 octave_idx_type a_idx = 0; |
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598 for (octave_idx_type frame = 0; frame < nFrames; frame++) |
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599 { |
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600 const Magick::PixelPacket *pix |
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601 = imvec[frameidx(frame)].getConstPixels (col_start, row_start, |
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602 col_cache, row_cache); |
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603 // Note that for CMYKColorspace + matte (CMYKA), the opacity is |
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604 // stored in the assocated IndexPacket. |
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605 const Magick::IndexPacket *apix |
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606 = imvec[frameidx(frame)].getConstIndexes (); |
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607 |
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608 octave_idx_type idx = 0; |
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609 img_fvec += nRows * nCols * frame; |
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610 P *cbuf = img_fvec; |
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611 P *mbuf = img_fvec + nRows * nCols; |
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612 P *ybuf = img_fvec + nRows * nCols * 2; |
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613 P *kbuf = img_fvec + nRows * nCols * 3; |
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614 |
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615 for (octave_idx_type col = 0; col < nCols; col++) |
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616 { |
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617 for (octave_idx_type row = 0; row < nRows; row++) |
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618 { |
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619 cbuf[idx] = pix->red / divisor; |
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620 mbuf[idx] = pix->green / divisor; |
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621 ybuf[idx] = pix->blue / divisor; |
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622 kbuf[idx] = pix->opacity / divisor; |
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623 a_fvec[a_idx++] = (MaxRGB - *apix) / divisor; |
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624 pix += row_shift; |
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625 idx++; |
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626 } |
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627 pix -= col_shift; |
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628 } |
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629 } |
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630 retval(2) = alpha; |
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631 break; |
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imread: implement reading of images with 32 bitdepth and alpha channels.
Carnë Draug <carandraug@octave.org>
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diff
changeset
|
632 } |
7926
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__magick_read__.cc: configuration and style fixes
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parents:
7925
diff
changeset
|
633 |
7925
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Add original imread() files (from octave-forge) to core octave.
Thomas L. Scofield <scofield AT calvin DOT edu>
parents:
diff
changeset
|
634 default: |
17110
95055b814d35
imread: implement reading of images with 32 bitdepth and alpha channels.
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parents:
16996
diff
changeset
|
635 error ("__magick_read__: unknown Magick++ image type"); |
7926
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parents:
7925
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changeset
|
636 return retval; |
7925
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Add original imread() files (from octave-forge) to core octave.
Thomas L. Scofield <scofield AT calvin DOT edu>
parents:
diff
changeset
|
637 } |
9316b59903c9
Add original imread() files (from octave-forge) to core octave.
Thomas L. Scofield <scofield AT calvin DOT edu>
parents:
diff
changeset
|
638 |
17110
95055b814d35
imread: implement reading of images with 32 bitdepth and alpha channels.
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
639 retval(0) = img; |
7926
d74f996e005d
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parents:
7925
diff
changeset
|
640 return retval; |
7925
9316b59903c9
Add original imread() files (from octave-forge) to core octave.
Thomas L. Scofield <scofield AT calvin DOT edu>
parents:
diff
changeset
|
641 } |
7974 | 642 |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
643 // Read a file into vector of image objects. |
16988
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
644 void static |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
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parents:
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diff
changeset
|
645 read_file (const std::string& filename, std::vector<Magick::Image>& imvec) |
16988
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imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
646 { |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
647 try |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
648 { |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
649 Magick::readImages (&imvec, filename); |
54b75bed4bc7
imwrite: implement WriteMode option.
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parents:
16984
diff
changeset
|
650 } |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
651 catch (Magick::Warning& w) |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
652 { |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
653 warning ("Magick++ warning: %s", w.what ()); |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
654 } |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
655 catch (Magick::ErrorCoder& e) |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
656 { |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
657 // FIXME: there's a WarningCoder and ErrorCoder. Shouldn't this |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
658 // exception cause an error? |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
659 warning ("Magick++ coder error: %s", e.what ()); |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
660 } |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
661 catch (Magick::Exception& e) |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
662 { |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
663 error ("Magick++ exception: %s", e.what ()); |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
664 error_state = 1; |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
665 } |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
666 } |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
667 |
10947
dc74ce93cfc4
initialize GraphicsMagick in all __magick_* functions
Jaroslav Hajek <highegg@gmail.com>
parents:
10840
diff
changeset
|
668 static void |
dc74ce93cfc4
initialize GraphicsMagick in all __magick_* functions
Jaroslav Hajek <highegg@gmail.com>
parents:
10840
diff
changeset
|
669 maybe_initialize_magick (void) |
7925
9316b59903c9
Add original imread() files (from octave-forge) to core octave.
Thomas L. Scofield <scofield AT calvin DOT edu>
parents:
diff
changeset
|
670 { |
10390
ad0b54ae206a
__magick_read__ (F__magick_read__): call Magick::InitializeMagick
John W. Eaton <jwe@octave.org>
parents:
10350
diff
changeset
|
671 static bool initialized = false; |
ad0b54ae206a
__magick_read__ (F__magick_read__): call Magick::InitializeMagick
John W. Eaton <jwe@octave.org>
parents:
10350
diff
changeset
|
672 |
ad0b54ae206a
__magick_read__ (F__magick_read__): call Magick::InitializeMagick
John W. Eaton <jwe@octave.org>
parents:
10350
diff
changeset
|
673 if (! initialized) |
ad0b54ae206a
__magick_read__ (F__magick_read__): call Magick::InitializeMagick
John W. Eaton <jwe@octave.org>
parents:
10350
diff
changeset
|
674 { |
16988
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
675 // Save locale as GraphicsMagick might change this (fixed in |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
676 // GraphicsMagick since version 1.3.13 released on December 24, 2011) |
10739
d27bd2f74137
src/DLD_FUNCTIONS/__magick_read__.cc: restore locale after GraphicsMagick initialisation
Soren Hauberg <hauberg@gmail.com>
parents:
10390
diff
changeset
|
677 const char *static_locale = setlocale (LC_ALL, NULL); |
d27bd2f74137
src/DLD_FUNCTIONS/__magick_read__.cc: restore locale after GraphicsMagick initialisation
Soren Hauberg <hauberg@gmail.com>
parents:
10390
diff
changeset
|
678 const std::string locale (static_locale); |
d27bd2f74137
src/DLD_FUNCTIONS/__magick_read__.cc: restore locale after GraphicsMagick initialisation
Soren Hauberg <hauberg@gmail.com>
parents:
10390
diff
changeset
|
679 |
16988
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
680 const std::string program_name = octave_env::get_program_invocation_name (); |
10390
ad0b54ae206a
__magick_read__ (F__magick_read__): call Magick::InitializeMagick
John W. Eaton <jwe@octave.org>
parents:
10350
diff
changeset
|
681 Magick::InitializeMagick (program_name.c_str ()); |
ad0b54ae206a
__magick_read__ (F__magick_read__): call Magick::InitializeMagick
John W. Eaton <jwe@octave.org>
parents:
10350
diff
changeset
|
682 |
10739
d27bd2f74137
src/DLD_FUNCTIONS/__magick_read__.cc: restore locale after GraphicsMagick initialisation
Soren Hauberg <hauberg@gmail.com>
parents:
10390
diff
changeset
|
683 // Restore locale from before GraphicsMagick initialisation |
d27bd2f74137
src/DLD_FUNCTIONS/__magick_read__.cc: restore locale after GraphicsMagick initialisation
Soren Hauberg <hauberg@gmail.com>
parents:
10390
diff
changeset
|
684 setlocale (LC_ALL, locale.c_str ()); |
d27bd2f74137
src/DLD_FUNCTIONS/__magick_read__.cc: restore locale after GraphicsMagick initialisation
Soren Hauberg <hauberg@gmail.com>
parents:
10390
diff
changeset
|
685 |
11036
169f59f626d3
Add check for QuantumDepth at initialization of *Magick and an associated warning
John Swensen <jpswensen@gmail.com>
parents:
11035
diff
changeset
|
686 if (QuantumDepth < 32) |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
687 warning ("your version of %s limits images to %d bits per pixel", |
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
688 MagickPackageName, QuantumDepth); |
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
689 |
10390
ad0b54ae206a
__magick_read__ (F__magick_read__): call Magick::InitializeMagick
John W. Eaton <jwe@octave.org>
parents:
10350
diff
changeset
|
690 initialized = true; |
ad0b54ae206a
__magick_read__ (F__magick_read__): call Magick::InitializeMagick
John W. Eaton <jwe@octave.org>
parents:
10350
diff
changeset
|
691 } |
16983
4660d047955e
Make use of gripe_disabled_feature() for image IO functions.
Carnë Draug <carandraug+dev@gmail.com>
parents:
16944
diff
changeset
|
692 } |
10947
dc74ce93cfc4
initialize GraphicsMagick in all __magick_* functions
Jaroslav Hajek <highegg@gmail.com>
parents:
10840
diff
changeset
|
693 #endif |
dc74ce93cfc4
initialize GraphicsMagick in all __magick_* functions
Jaroslav Hajek <highegg@gmail.com>
parents:
10840
diff
changeset
|
694 |
dc74ce93cfc4
initialize GraphicsMagick in all __magick_* functions
Jaroslav Hajek <highegg@gmail.com>
parents:
10840
diff
changeset
|
695 DEFUN_DLD (__magick_read__, args, nargout, |
dc74ce93cfc4
initialize GraphicsMagick in all __magick_* functions
Jaroslav Hajek <highegg@gmail.com>
parents:
10840
diff
changeset
|
696 "-*- texinfo -*-\n\ |
16984
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
697 @deftypefn {Loadable Function} {[@var{img}, @var{map}, @var{alpha}] =} __magick_read__ (@var{fname}, @var{options})\n\ |
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
698 Read image with GraphicsMagick or ImageMagick.\n\ |
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
699 \n\ |
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
700 This is a private internal function not intended for direct use. Instead\n\ |
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
701 use @code{imread}.\n\ |
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
702 \n\ |
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
703 @seealso{imfinfo, imformats, imread, imwrite}\n\ |
10947
dc74ce93cfc4
initialize GraphicsMagick in all __magick_* functions
Jaroslav Hajek <highegg@gmail.com>
parents:
10840
diff
changeset
|
704 @end deftypefn") |
dc74ce93cfc4
initialize GraphicsMagick in all __magick_* functions
Jaroslav Hajek <highegg@gmail.com>
parents:
10840
diff
changeset
|
705 { |
dc74ce93cfc4
initialize GraphicsMagick in all __magick_* functions
Jaroslav Hajek <highegg@gmail.com>
parents:
10840
diff
changeset
|
706 octave_value_list output; |
dc74ce93cfc4
initialize GraphicsMagick in all __magick_* functions
Jaroslav Hajek <highegg@gmail.com>
parents:
10840
diff
changeset
|
707 |
16983
4660d047955e
Make use of gripe_disabled_feature() for image IO functions.
Carnë Draug <carandraug+dev@gmail.com>
parents:
16944
diff
changeset
|
708 #ifndef HAVE_MAGICK |
4660d047955e
Make use of gripe_disabled_feature() for image IO functions.
Carnë Draug <carandraug+dev@gmail.com>
parents:
16944
diff
changeset
|
709 gripe_disabled_feature ("imread", "Image IO"); |
4660d047955e
Make use of gripe_disabled_feature() for image IO functions.
Carnë Draug <carandraug+dev@gmail.com>
parents:
16944
diff
changeset
|
710 #else |
10947
dc74ce93cfc4
initialize GraphicsMagick in all __magick_* functions
Jaroslav Hajek <highegg@gmail.com>
parents:
10840
diff
changeset
|
711 |
dc74ce93cfc4
initialize GraphicsMagick in all __magick_* functions
Jaroslav Hajek <highegg@gmail.com>
parents:
10840
diff
changeset
|
712 maybe_initialize_magick (); |
10390
ad0b54ae206a
__magick_read__ (F__magick_read__): call Magick::InitializeMagick
John W. Eaton <jwe@octave.org>
parents:
10350
diff
changeset
|
713 |
16984
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
714 if (args.length () != 2 || ! args(0).is_string ()) |
7925
9316b59903c9
Add original imread() files (from octave-forge) to core octave.
Thomas L. Scofield <scofield AT calvin DOT edu>
parents:
diff
changeset
|
715 { |
9316b59903c9
Add original imread() files (from octave-forge) to core octave.
Thomas L. Scofield <scofield AT calvin DOT edu>
parents:
diff
changeset
|
716 print_usage (); |
7926
d74f996e005d
__magick_read__.cc: configuration and style fixes
John W. Eaton <jwe@octave.org>
parents:
7925
diff
changeset
|
717 return output; |
7925
9316b59903c9
Add original imread() files (from octave-forge) to core octave.
Thomas L. Scofield <scofield AT calvin DOT edu>
parents:
diff
changeset
|
718 } |
7926
d74f996e005d
__magick_read__.cc: configuration and style fixes
John W. Eaton <jwe@octave.org>
parents:
7925
diff
changeset
|
719 |
17118
c97a26408ee0
Implement PixelRegion option for imread().
Carnë Draug <carandraug@octave.org>
parents:
17116
diff
changeset
|
720 const octave_scalar_map options = args(1).scalar_map_value (); |
16984
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
721 if (error_state) |
10778
6035bf68a755
Support imread('file', 'frames', 'all') (Feature Request #30365)
David Bateman <dbateman@free.fr>
parents:
10739
diff
changeset
|
722 { |
16984
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
723 error ("__magick_read__: OPTIONS must be a struct"); |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
724 return output; |
7925
9316b59903c9
Add original imread() files (from octave-forge) to core octave.
Thomas L. Scofield <scofield AT calvin DOT edu>
parents:
diff
changeset
|
725 } |
9316b59903c9
Add original imread() files (from octave-forge) to core octave.
Thomas L. Scofield <scofield AT calvin DOT edu>
parents:
diff
changeset
|
726 |
7926
d74f996e005d
__magick_read__.cc: configuration and style fixes
John W. Eaton <jwe@octave.org>
parents:
7925
diff
changeset
|
727 std::vector<Magick::Image> imvec; |
16988
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
728 read_file (args(0).string_value (), imvec); |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
729 if (error_state) |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
730 return output; |
7925
9316b59903c9
Add original imread() files (from octave-forge) to core octave.
Thomas L. Scofield <scofield AT calvin DOT edu>
parents:
diff
changeset
|
731 |
16996
a1d091243d11
Read alpha values from indexed images. Always read indexes from indexed images.
Carnë Draug <carandraug@octave.org>
parents:
16989
diff
changeset
|
732 // Prepare an Array with the indexes for the requested frames. |
a1d091243d11
Read alpha values from indexed images. Always read indexes from indexed images.
Carnë Draug <carandraug@octave.org>
parents:
16989
diff
changeset
|
733 const octave_idx_type nFrames = imvec.size (); |
a1d091243d11
Read alpha values from indexed images. Always read indexes from indexed images.
Carnë Draug <carandraug@octave.org>
parents:
16989
diff
changeset
|
734 Array<octave_idx_type> frameidx; |
17118
c97a26408ee0
Implement PixelRegion option for imread().
Carnë Draug <carandraug@octave.org>
parents:
17116
diff
changeset
|
735 const octave_value indexes = options.getfield ("index"); |
16984
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
736 if (indexes.is_string () && indexes.string_value () == "all") |
7925
9316b59903c9
Add original imread() files (from octave-forge) to core octave.
Thomas L. Scofield <scofield AT calvin DOT edu>
parents:
diff
changeset
|
737 { |
16996
a1d091243d11
Read alpha values from indexed images. Always read indexes from indexed images.
Carnë Draug <carandraug@octave.org>
parents:
16989
diff
changeset
|
738 frameidx.resize (dim_vector (1, nFrames)); |
a1d091243d11
Read alpha values from indexed images. Always read indexes from indexed images.
Carnë Draug <carandraug@octave.org>
parents:
16989
diff
changeset
|
739 for (octave_idx_type i = 0; i < nFrames; i++) |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
740 frameidx(i) = i; |
10778
6035bf68a755
Support imread('file', 'frames', 'all') (Feature Request #30365)
David Bateman <dbateman@free.fr>
parents:
10739
diff
changeset
|
741 } |
6035bf68a755
Support imread('file', 'frames', 'all') (Feature Request #30365)
David Bateman <dbateman@free.fr>
parents:
10739
diff
changeset
|
742 else |
6035bf68a755
Support imread('file', 'frames', 'all') (Feature Request #30365)
David Bateman <dbateman@free.fr>
parents:
10739
diff
changeset
|
743 { |
16984
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
744 frameidx = indexes.int_vector_value (); |
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
745 if (error_state) |
10778
6035bf68a755
Support imread('file', 'frames', 'all') (Feature Request #30365)
David Bateman <dbateman@free.fr>
parents:
10739
diff
changeset
|
746 { |
16984
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
747 error ("__magick_read__: invalid value for Index/Frame"); |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
748 return output; |
16984
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
749 } |
16989
7a69ab84b8c9
__magick_write__: confirm file exists before reading to append.
Carnë Draug <carandraug@octave.org>
parents:
16988
diff
changeset
|
750 // Fix indexes from base 1 to base 0, and at the same time, make |
16984
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
751 // sure none of the indexes is outside the range of image number. |
16996
a1d091243d11
Read alpha values from indexed images. Always read indexes from indexed images.
Carnë Draug <carandraug@octave.org>
parents:
16989
diff
changeset
|
752 const octave_idx_type n = frameidx.nelem (); |
a1d091243d11
Read alpha values from indexed images. Always read indexes from indexed images.
Carnë Draug <carandraug@octave.org>
parents:
16989
diff
changeset
|
753 for (octave_idx_type i = 0; i < n; i++) |
16984
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
754 { |
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
755 frameidx(i)--; |
16996
a1d091243d11
Read alpha values from indexed images. Always read indexes from indexed images.
Carnë Draug <carandraug@octave.org>
parents:
16989
diff
changeset
|
756 if (frameidx(i) < 0 || frameidx(i) > nFrames - 1) |
10778
6035bf68a755
Support imread('file', 'frames', 'all') (Feature Request #30365)
David Bateman <dbateman@free.fr>
parents:
10739
diff
changeset
|
757 { |
16984
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
758 error ("imread: index/frames specified are outside the number of images"); |
10778
6035bf68a755
Support imread('file', 'frames', 'all') (Feature Request #30365)
David Bateman <dbateman@free.fr>
parents:
10739
diff
changeset
|
759 return output; |
6035bf68a755
Support imread('file', 'frames', 'all') (Feature Request #30365)
David Bateman <dbateman@free.fr>
parents:
10739
diff
changeset
|
760 } |
8053 | 761 } |
7925
9316b59903c9
Add original imread() files (from octave-forge) to core octave.
Thomas L. Scofield <scofield AT calvin DOT edu>
parents:
diff
changeset
|
762 } |
7926
d74f996e005d
__magick_read__.cc: configuration and style fixes
John W. Eaton <jwe@octave.org>
parents:
7925
diff
changeset
|
763 |
17350 | 764 const octave_idx_type depth = get_depth (imvec[frameidx(0)]); |
765 if (is_indexed (imvec[frameidx(0)])) | |
16984
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
766 { |
17110
95055b814d35
imread: implement reading of images with 32 bitdepth and alpha channels.
Carnë Draug <carandraug@octave.org>
parents:
16996
diff
changeset
|
767 if (depth <= 1) |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
768 output = read_indexed_images<boolNDArray> (imvec, frameidx, |
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
769 nargout, options); |
17110
95055b814d35
imread: implement reading of images with 32 bitdepth and alpha channels.
Carnë Draug <carandraug@octave.org>
parents:
16996
diff
changeset
|
770 else if (depth <= 8) |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
771 output = read_indexed_images<uint8NDArray> (imvec, frameidx, |
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
772 nargout, options); |
17110
95055b814d35
imread: implement reading of images with 32 bitdepth and alpha channels.
Carnë Draug <carandraug@octave.org>
parents:
16996
diff
changeset
|
773 else if (depth <= 16) |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
774 output = read_indexed_images<uint16NDArray> (imvec, frameidx, |
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
775 nargout, options); |
16996
a1d091243d11
Read alpha values from indexed images. Always read indexes from indexed images.
Carnë Draug <carandraug@octave.org>
parents:
16989
diff
changeset
|
776 else |
a1d091243d11
Read alpha values from indexed images. Always read indexes from indexed images.
Carnë Draug <carandraug@octave.org>
parents:
16989
diff
changeset
|
777 { |
a1d091243d11
Read alpha values from indexed images. Always read indexes from indexed images.
Carnë Draug <carandraug@octave.org>
parents:
16989
diff
changeset
|
778 error ("imread: indexed images with depths greater than 16-bit are not supported"); |
a1d091243d11
Read alpha values from indexed images. Always read indexes from indexed images.
Carnë Draug <carandraug@octave.org>
parents:
16989
diff
changeset
|
779 return output; |
a1d091243d11
Read alpha values from indexed images. Always read indexes from indexed images.
Carnë Draug <carandraug@octave.org>
parents:
16989
diff
changeset
|
780 } |
16984
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
781 } |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11585
diff
changeset
|
782 |
16996
a1d091243d11
Read alpha values from indexed images. Always read indexes from indexed images.
Carnë Draug <carandraug@octave.org>
parents:
16989
diff
changeset
|
783 else |
a1d091243d11
Read alpha values from indexed images. Always read indexes from indexed images.
Carnë Draug <carandraug@octave.org>
parents:
16989
diff
changeset
|
784 { |
17110
95055b814d35
imread: implement reading of images with 32 bitdepth and alpha channels.
Carnë Draug <carandraug@octave.org>
parents:
16996
diff
changeset
|
785 if (depth <= 1) |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
786 output = read_images<boolNDArray> (imvec, frameidx, nargout, options); |
17110
95055b814d35
imread: implement reading of images with 32 bitdepth and alpha channels.
Carnë Draug <carandraug@octave.org>
parents:
16996
diff
changeset
|
787 else if (depth <= 8) |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
788 output = read_images<uint8NDArray> (imvec, frameidx, nargout, options); |
17110
95055b814d35
imread: implement reading of images with 32 bitdepth and alpha channels.
Carnë Draug <carandraug@octave.org>
parents:
16996
diff
changeset
|
789 else if (depth <= 16) |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
790 output = read_images<uint16NDArray> (imvec, frameidx, nargout, options); |
17110
95055b814d35
imread: implement reading of images with 32 bitdepth and alpha channels.
Carnë Draug <carandraug@octave.org>
parents:
16996
diff
changeset
|
791 else if (depth <= 32) |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
792 output = read_images<FloatNDArray> (imvec, frameidx, nargout, options); |
17110
95055b814d35
imread: implement reading of images with 32 bitdepth and alpha channels.
Carnë Draug <carandraug@octave.org>
parents:
16996
diff
changeset
|
793 else |
95055b814d35
imread: implement reading of images with 32 bitdepth and alpha channels.
Carnë Draug <carandraug@octave.org>
parents:
16996
diff
changeset
|
794 { |
95055b814d35
imread: implement reading of images with 32 bitdepth and alpha channels.
Carnë Draug <carandraug@octave.org>
parents:
16996
diff
changeset
|
795 error ("imread: reading of images with %i-bit depth is not supported", |
95055b814d35
imread: implement reading of images with 32 bitdepth and alpha channels.
Carnë Draug <carandraug@octave.org>
parents:
16996
diff
changeset
|
796 depth); |
95055b814d35
imread: implement reading of images with 32 bitdepth and alpha channels.
Carnë Draug <carandraug@octave.org>
parents:
16996
diff
changeset
|
797 } |
16996
a1d091243d11
Read alpha values from indexed images. Always read indexes from indexed images.
Carnë Draug <carandraug@octave.org>
parents:
16989
diff
changeset
|
798 } |
7937
6661387827d6
Allow build without GraphicsMagick installed
David Bateman <dbateman@free.fr>
parents:
7933
diff
changeset
|
799 |
6661387827d6
Allow build without GraphicsMagick installed
David Bateman <dbateman@free.fr>
parents:
7933
diff
changeset
|
800 #endif |
7925
9316b59903c9
Add original imread() files (from octave-forge) to core octave.
Thomas L. Scofield <scofield AT calvin DOT edu>
parents:
diff
changeset
|
801 return output; |
9316b59903c9
Add original imread() files (from octave-forge) to core octave.
Thomas L. Scofield <scofield AT calvin DOT edu>
parents:
diff
changeset
|
802 } |
7926
d74f996e005d
__magick_read__.cc: configuration and style fixes
John W. Eaton <jwe@octave.org>
parents:
7925
diff
changeset
|
803 |
12805
3641167e5b75
codesprint: *.cc helper functions do not need tests
Rik <octave@nomad.inbox5.com>
parents:
11590
diff
changeset
|
804 /* |
3641167e5b75
codesprint: *.cc helper functions do not need tests
Rik <octave@nomad.inbox5.com>
parents:
11590
diff
changeset
|
805 ## No test needed for internal helper function. |
3641167e5b75
codesprint: *.cc helper functions do not need tests
Rik <octave@nomad.inbox5.com>
parents:
11590
diff
changeset
|
806 %!assert (1) |
3641167e5b75
codesprint: *.cc helper functions do not need tests
Rik <octave@nomad.inbox5.com>
parents:
11590
diff
changeset
|
807 */ |
3641167e5b75
codesprint: *.cc helper functions do not need tests
Rik <octave@nomad.inbox5.com>
parents:
11590
diff
changeset
|
808 |
7974 | 809 #ifdef HAVE_MAGICK |
810 | |
17226
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
811 template <class T> |
17228
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
812 static uint32NDArray |
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
813 img_float2uint (const T& img) |
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
814 { |
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
815 typedef typename T::element_type P; |
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
816 uint32NDArray out (img.dims ()); |
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
817 |
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
818 octave_uint32* out_fvec = out.fortran_vec (); |
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
819 const P* img_fvec = img.fortran_vec (); |
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
820 |
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
821 const octave_uint32 max = octave_uint32::max (); |
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
822 const octave_idx_type numel = img.numel (); |
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
823 for (octave_idx_type idx = 0; idx < numel; idx++) |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
824 out_fvec[idx] = img_fvec[idx] * max; |
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
825 |
17228
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
826 return out; |
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
827 } |
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
828 |
17332
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
829 // Gets the bitdepth to be used for an Octave class, i.e, returns 8 for |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
830 // uint8, 16 for uint16, and 32 for uint32 |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
831 template <class T> |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
832 static octave_idx_type |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
833 bitdepth_from_class () |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
834 { |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
835 typedef typename T::element_type P; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
836 const octave_idx_type bitdepth = |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
837 sizeof (P) * std::numeric_limits<unsigned char>::digits; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
838 return bitdepth; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
839 } |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
840 |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
841 static Magick::Image |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
842 init_enconde_image (const octave_idx_type& nCols, const octave_idx_type& nRows, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
843 const octave_idx_type& bitdepth, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
844 const Magick::ImageType& type, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
845 const Magick::ClassType& klass) |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
846 { |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
847 Magick::Image img (Magick::Geometry (nCols, nRows), "black"); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
848 // Ensure that there are no other references to this image. |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
849 img.modifyImage (); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
850 |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
851 img.classType (klass); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
852 img.type (type); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
853 // FIXME: for some reason, setting bitdepth doesn't seem to work for |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
854 // indexed images. |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
855 img.depth (bitdepth); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
856 switch (type) |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
857 { |
eb7e9a991ffb
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858 case Magick::GrayscaleMatteType: |
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859 case Magick::TrueColorMatteType: |
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860 case Magick::ColorSeparationMatteType: |
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861 case Magick::PaletteMatteType: |
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862 img.matte (true); |
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863 break; |
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864 |
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865 default: |
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866 img.matte (false); |
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867 } |
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868 |
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869 return img; |
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870 } |
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871 |
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872 template <class T> |
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873 static void |
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874 encode_indexed_images (std::vector<Magick::Image>& imvec, |
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875 const T& img, |
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876 const Matrix& cmap) |
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877 { |
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878 typedef typename T::element_type P; |
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879 const octave_idx_type nFrames = img.ndims () < 4 ? 1 : img.dims ()(3); |
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880 const octave_idx_type nRows = img.rows (); |
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881 const octave_idx_type nCols = img.columns (); |
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882 const octave_idx_type cmap_size = cmap.rows (); |
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883 const octave_idx_type bitdepth = bitdepth_from_class<T> (); |
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884 |
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885 // There is no colormap object, we need to build a new one for each frame, |
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886 // even if it's always the same. We can least get a vector for the Colors. |
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887 std::vector<Magick::ColorRGB> colormap; |
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888 { |
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889 const double* cmap_fvec = cmap.fortran_vec (); |
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890 const octave_idx_type G_offset = cmap_size; |
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891 const octave_idx_type B_offset = cmap_size * 2; |
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892 for (octave_idx_type map_idx = 0; map_idx < cmap_size; map_idx++) |
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893 colormap.push_back (Magick::ColorRGB (cmap_fvec[map_idx], |
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894 cmap_fvec[map_idx + G_offset], |
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895 cmap_fvec[map_idx + B_offset])); |
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896 } |
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|
897 |
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898 for (octave_idx_type frame = 0; frame < nFrames; frame++) |
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899 { |
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900 Magick::Image m_img = init_enconde_image (nCols, nRows, bitdepth, |
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901 Magick::PaletteType, |
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902 Magick::PseudoClass); |
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903 |
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904 // Insert colormap. |
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905 m_img.colorMapSize (cmap_size); |
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906 for (octave_idx_type map_idx = 0; map_idx < cmap_size; map_idx++) |
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907 m_img.colorMap (map_idx, colormap[map_idx]); |
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|
908 |
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909 // Why are we also setting the pixel values instead of only the |
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910 // index values? We don't know if a file format supports indexed |
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911 // images. If we only set the indexes and then try to save the |
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|
912 // image as JPEG for example, the indexed values get discarded, |
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913 // there is no conversion from the indexes, it's the initial values |
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914 // that get used. An alternative would be to only set the pixel |
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915 // values (no indexes), then set the image as PseudoClass and GM |
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916 // would create a colormap for us. However, we wouldn't have control |
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917 // over the order of that colormap. And that's why we set both. |
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918 Magick::PixelPacket* pix = m_img.getPixels (0, 0, nCols, nRows); |
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919 Magick::IndexPacket* ind = m_img.getIndexes (); |
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920 const P* img_fvec = img.fortran_vec (); |
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921 |
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922 octave_idx_type GM_idx = 0; |
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923 for (octave_idx_type column = 0; column < nCols; column++) |
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924 { |
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|
925 for (octave_idx_type row = 0; row < nRows; row++) |
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|
926 { |
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|
927 ind[GM_idx] = double (*img_fvec); |
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|
928 pix[GM_idx] = m_img.colorMap (double (*img_fvec)); |
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Implement writing of indexed images.
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929 img_fvec++; |
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930 GM_idx += nCols; |
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|
931 } |
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932 GM_idx -= nCols * nRows - 1; |
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933 } |
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|
934 |
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|
935 // Save changes to underlying image. |
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|
936 m_img.syncPixels (); |
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|
937 imvec.push_back (m_img); |
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938 } |
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939 } |
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940 |
8054 | 941 static void |
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|
942 encode_bool_image (std::vector<Magick::Image>& imvec, const boolNDArray& img) |
7974 | 943 { |
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|
944 const octave_idx_type nFrames = img.ndims () < 4 ? 1 : img.dims ()(3); |
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945 const octave_idx_type nRows = img.rows (); |
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946 const octave_idx_type nCols = img.columns (); |
8054 | 947 |
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|
948 // The initialized image will be black, this is for the other pixels |
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|
949 const Magick::Color white ("white"); |
8054 | 950 |
17332
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951 const bool *img_fvec = img.fortran_vec (); |
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952 octave_idx_type img_idx = 0; |
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|
953 for (octave_idx_type frame = 0; frame < nFrames; frame++) |
8054 | 954 { |
17333
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__magick_write__: make sure binary images are saved as bilevel for some coders.
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|
955 // For some reason, we can't set the type to Magick::BilevelType or |
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956 // the output image will be black, changing to white has no effect. |
17332
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957 // However, this will still work fine and a binary image will be |
eb7e9a991ffb
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958 // saved because we are setting the bitdepth to 1. |
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959 Magick::Image m_img = init_enconde_image (nCols, nRows, 1, |
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960 Magick::GrayscaleType, |
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961 Magick::DirectClass); |
8054 | 962 |
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963 Magick::PixelPacket *pix = m_img.getPixels (0, 0, nCols, nRows); |
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|
964 octave_idx_type GM_idx = 0; |
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965 for (octave_idx_type col = 0; col < nCols; col++) |
8054 | 966 { |
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967 for (octave_idx_type row = 0; row < nRows; row++) |
8054 | 968 { |
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969 if (img_fvec[img_idx]) |
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|
970 pix[GM_idx] = white; |
10979
7f49dc864f32
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|
971 |
17332
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|
972 img_idx++; |
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973 GM_idx += nCols; |
8054 | 974 } |
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975 GM_idx -= nCols * nRows - 1; |
8054 | 976 } |
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977 // Save changes to underlying image. |
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978 m_img.syncPixels (); |
17333
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__magick_write__: make sure binary images are saved as bilevel for some coders.
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979 // While we could not set it to Bilevel at the start, we can do it |
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980 // here otherwise some coders won't save it as binary. |
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981 m_img.type (Magick::BilevelType); |
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982 imvec.push_back (m_img); |
8054 | 983 } |
984 } | |
985 | |
986 template <class T> | |
987 static void | |
988 encode_uint_image (std::vector<Magick::Image>& imvec, | |
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989 const T& img, const T& alpha) |
8054 | 990 { |
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991 typedef typename T::element_type P; |
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992 const octave_idx_type channels = img.ndims () < 3 ? 1 : img.dims ()(2); |
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993 const octave_idx_type nFrames = img.ndims () < 4 ? 1 : img.dims ()(3); |
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994 const octave_idx_type nRows = img.rows (); |
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995 const octave_idx_type nCols = img.columns (); |
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996 const octave_idx_type bitdepth = bitdepth_from_class<T> (); |
8054 | 997 |
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998 Magick::ImageType type; |
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999 const bool has_alpha = ! alpha.is_empty (); |
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1000 switch (channels) |
8054 | 1001 { |
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1002 case 1: |
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1003 if (has_alpha) |
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1004 type = Magick::GrayscaleMatteType; |
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1005 else |
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1006 type = Magick::GrayscaleType; |
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|
1007 break; |
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1008 |
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|
1009 case 3: |
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1010 if (has_alpha) |
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1011 type = Magick::TrueColorMatteType; |
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1012 else |
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1013 type = Magick::TrueColorType; |
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1014 break; |
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1015 |
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1016 case 4: |
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|
1017 if (has_alpha) |
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1018 type = Magick::ColorSeparationMatteType; |
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1019 else |
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1020 type = Magick::ColorSeparationType; |
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1021 break; |
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1022 |
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1023 default: |
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1024 { |
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1025 // __imwrite should have already filtered this cases |
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1026 error ("__magick_write__: wrong size on 3rd dimension"); |
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|
1027 return; |
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|
1028 } |
8054 | 1029 } |
1030 | |
17332
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1031 // We will be passing the values as integers with depth as specified |
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1032 // by QuantumDepth (maximum value specified by MaxRGB). This is independent |
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1033 // of the actual depth of the image. GM will then convert the values but |
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1034 // while in memory, it always keeps the values as specified by QuantumDepth. |
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|
1035 // From GM documentation: |
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1036 // Color arguments are must be scaled to fit the Quantum size according to |
eb7e9a991ffb
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|
1037 // the range of MaxRGB |
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|
1038 const double divisor = (pow (2, bitdepth) - 1) / MaxRGB; |
8054 | 1039 |
17332
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|
1040 const P *img_fvec = img.fortran_vec (); |
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|
1041 const P *a_fvec = alpha.fortran_vec (); |
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|
1042 switch (type) |
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|
1043 { |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1044 case Magick::GrayscaleType: |
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|
1045 { |
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|
1046 octave_idx_type GM_idx = 0; |
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|
1047 for (octave_idx_type frame = 0; frame < nFrames; frame++) |
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|
1048 { |
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|
1049 Magick::Image m_img = init_enconde_image (nCols, nRows, bitdepth, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1050 type, |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1051 Magick::DirectClass); |
8054 | 1052 |
17332
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1053 Magick::PixelPacket *pix = m_img.getPixels (0, 0, nCols, nRows); |
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|
1054 for (octave_idx_type col = 0; col < nCols; col++) |
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|
1055 { |
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|
1056 for (octave_idx_type row = 0; row < nRows; row++) |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1057 { |
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|
1058 Magick::Color c; |
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|
1059 c.redQuantum (double (*img_fvec) / divisor); |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1060 pix[GM_idx] = c; |
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|
1061 img_fvec++; |
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|
1062 GM_idx += nCols; |
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|
1063 } |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1064 GM_idx -= nCols * nRows - 1; |
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|
1065 } |
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|
1066 // Save changes to underlying image. |
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|
1067 m_img.syncPixels (); |
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|
1068 imvec.push_back (m_img); |
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|
1069 } |
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|
1070 break; |
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|
1071 } |
8054 | 1072 |
17332
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|
1073 case Magick::GrayscaleMatteType: |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1074 { |
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|
1075 octave_idx_type GM_idx = 0; |
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|
1076 for (octave_idx_type frame = 0; frame < nFrames; frame++) |
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|
1077 { |
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|
1078 Magick::Image m_img = init_enconde_image (nCols, nRows, bitdepth, |
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|
1079 type, |
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|
1080 Magick::DirectClass); |
7974 | 1081 |
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|
1082 Magick::PixelPacket *pix = m_img.getPixels (0, 0, nCols, nRows); |
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|
1083 for (octave_idx_type col = 0; col < nCols; col++) |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1084 { |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1085 for (octave_idx_type row = 0; row < nRows; row++) |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1086 { |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1087 Magick::Color c; |
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|
1088 c.redQuantum (double (*img_fvec) / divisor); |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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1089 c.alphaQuantum (MaxRGB - (double (*a_fvec) / divisor)); |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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1090 pix[GM_idx] = c; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1091 img_fvec++; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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1092 a_fvec++; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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1093 GM_idx += nCols; |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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1094 } |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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1095 GM_idx -= nCols * nRows - 1; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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1096 } |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1097 // Save changes to underlying image. |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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1098 m_img.syncPixels (); |
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1099 imvec.push_back (m_img); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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1100 } |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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1101 break; |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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1102 } |
10979
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__magick_read__.cc: style fixes
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1103 |
17332
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|
1104 case Magick::TrueColorType: |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1105 { |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1106 // The fortran_vec offset for the green and blue channels |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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1107 const octave_idx_type G_offset = nCols * nRows; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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1108 const octave_idx_type B_offset = nCols * nRows * 2; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1109 octave_idx_type GM_idx = 0; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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1110 for (octave_idx_type frame = 0; frame < nFrames; frame++) |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
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|
1111 { |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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1112 Magick::Image m_img = init_enconde_image (nCols, nRows, bitdepth, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
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1113 type, |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1114 Magick::DirectClass); |
10979
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__magick_read__.cc: style fixes
John W. Eaton <jwe@octave.org>
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1115 |
17332
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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1116 Magick::PixelPacket *pix = m_img.getPixels (0, 0, nCols, nRows); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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1117 for (octave_idx_type col = 0; col < nCols; col++) |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
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|
1118 { |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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1119 for (octave_idx_type row = 0; row < nRows; row++) |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1120 { |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1121 Magick::Color c (double (*img_fvec) / divisor, |
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Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1122 double (img_fvec[G_offset]) / divisor, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1123 double (img_fvec[B_offset]) / divisor); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1124 pix[GM_idx] = c; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1125 img_fvec++; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
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|
1126 GM_idx += nCols; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1127 } |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
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|
1128 GM_idx -= nCols * nRows - 1; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1129 } |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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|
1130 // Save changes to underlying image. |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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|
1131 m_img.syncPixels (); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
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|
1132 imvec.push_back (m_img); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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parents:
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|
1133 } |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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|
1134 break; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
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|
1135 } |
8054 | 1136 |
17332
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
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|
1137 case Magick::TrueColorMatteType: |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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|
1138 { |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1139 // The fortran_vec offset for the green and blue channels |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1140 const octave_idx_type G_offset = nCols * nRows; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1141 const octave_idx_type B_offset = nCols * nRows * 2; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1142 octave_idx_type GM_idx = 0; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
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changeset
|
1143 for (octave_idx_type frame = 0; frame < nFrames; frame++) |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1144 { |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1145 Magick::Image m_img = init_enconde_image (nCols, nRows, bitdepth, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
1146 type, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
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changeset
|
1147 Magick::DirectClass); |
10979
7f49dc864f32
__magick_read__.cc: style fixes
John W. Eaton <jwe@octave.org>
parents:
10978
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changeset
|
1148 |
17332
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1149 Magick::PixelPacket *pix = m_img.getPixels (0, 0, nCols, nRows); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1150 for (octave_idx_type col = 0; col < nCols; col++) |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1151 { |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
1152 for (octave_idx_type row = 0; row < nRows; row++) |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
1153 { |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1154 Magick::Color c (double (*img_fvec) / divisor, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
1155 double (img_fvec[G_offset]) / divisor, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1156 double (img_fvec[B_offset]) / divisor, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1157 MaxRGB - (double (*a_fvec) / divisor)); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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parents:
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|
1158 pix[GM_idx] = c; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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parents:
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changeset
|
1159 img_fvec++; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
1160 a_fvec++; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
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changeset
|
1161 GM_idx += nCols; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1162 } |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1163 GM_idx -= nCols * nRows - 1; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1164 } |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1165 // Save changes to underlying image. |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
1166 m_img.syncPixels (); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1167 imvec.push_back (m_img); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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parents:
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changeset
|
1168 } |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1169 break; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1170 } |
8054 | 1171 |
17332
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
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changeset
|
1172 case Magick::ColorSeparationType: |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1173 { |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1174 // The fortran_vec offset for the Magenta, Yellow, and blacK channels |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
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changeset
|
1175 const octave_idx_type M_offset = nCols * nRows; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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changeset
|
1176 const octave_idx_type Y_offset = nCols * nRows * 2; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
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|
1177 const octave_idx_type K_offset = nCols * nRows * 3; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1178 octave_idx_type GM_idx = 0; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
1179 for (octave_idx_type frame = 0; frame < nFrames; frame++) |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
1180 { |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1181 Magick::Image m_img = init_enconde_image (nCols, nRows, bitdepth, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
1182 type, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1183 Magick::DirectClass); |
10979
7f49dc864f32
__magick_read__.cc: style fixes
John W. Eaton <jwe@octave.org>
parents:
10978
diff
changeset
|
1184 |
17332
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1185 Magick::PixelPacket *pix = m_img.getPixels (0, 0, nCols, nRows); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1186 for (octave_idx_type col = 0; col < nCols; col++) |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
1187 { |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1188 for (octave_idx_type row = 0; row < nRows; row++) |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
1189 { |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
1190 Magick::Color c (double (*img_fvec) / divisor, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1191 double (img_fvec[M_offset]) / divisor, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1192 double (img_fvec[Y_offset]) / divisor, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1193 double (img_fvec[K_offset]) / divisor); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1194 pix[GM_idx] = c; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1195 img_fvec++; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1196 GM_idx += nCols; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1197 } |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1198 GM_idx -= nCols * nRows - 1; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1199 } |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1200 // Save changes to underlying image. |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1201 m_img.syncPixels (); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1202 imvec.push_back (m_img); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1203 } |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1204 break; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1205 } |
10979
7f49dc864f32
__magick_read__.cc: style fixes
John W. Eaton <jwe@octave.org>
parents:
10978
diff
changeset
|
1206 |
17332
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1207 case Magick::ColorSeparationMatteType: |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1208 { |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1209 // The fortran_vec offset for the Magenta, Yellow, and blacK channels |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1210 const octave_idx_type M_offset = nCols * nRows; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1211 const octave_idx_type Y_offset = nCols * nRows * 2; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1212 const octave_idx_type K_offset = nCols * nRows * 3; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1213 octave_idx_type GM_idx = 0; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1214 for (octave_idx_type frame = 0; frame < nFrames; frame++) |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1215 { |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1216 Magick::Image m_img = init_enconde_image (nCols, nRows, bitdepth, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1217 type, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1218 Magick::DirectClass); |
10979
7f49dc864f32
__magick_read__.cc: style fixes
John W. Eaton <jwe@octave.org>
parents:
10978
diff
changeset
|
1219 |
17332
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
1220 Magick::PixelPacket *pix = m_img.getPixels (0, 0, nCols, nRows); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1221 Magick::IndexPacket *ind = m_img.getIndexes (); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
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changeset
|
1222 for (octave_idx_type col = 0; col < nCols; col++) |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1223 { |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1224 for (octave_idx_type row = 0; row < nRows; row++) |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1225 { |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1226 Magick::Color c (double (*img_fvec) / divisor, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1227 double (img_fvec[M_offset]) / divisor, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1228 double (img_fvec[Y_offset]) / divisor, |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1229 double (img_fvec[K_offset]) / divisor); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1230 pix[GM_idx] = c; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1231 ind[GM_idx] = MaxRGB - (double (*a_fvec) / divisor); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1232 img_fvec++; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1233 a_fvec++; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1234 GM_idx += nCols; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1235 } |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1236 GM_idx -= nCols * nRows - 1; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1237 } |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1238 // Save changes to underlying image. |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1239 m_img.syncPixels (); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1240 imvec.push_back (m_img); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1241 } |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1242 break; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1243 } |
11034
6589aaf769f6
Correctly handle logical and integer bit depths
John Swensen <jpswensen@gmail.com>
parents:
10988
diff
changeset
|
1244 |
17332
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1245 default: |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
1246 { |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1247 error ("__magick_write__: unrecognized Magick::ImageType"); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1248 return; |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
1249 } |
8054 | 1250 } |
17332
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1251 return; |
8054 | 1252 } |
1253 | |
16988
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
1254 void static |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
1255 write_file (const std::string& filename, |
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
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changeset
|
1256 const std::string& ext, |
16988
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
1257 std::vector<Magick::Image>& imvec) |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
1258 { |
7974 | 1259 try |
1260 { | |
16988
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
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diff
changeset
|
1261 Magick::writeImages (imvec.begin (), imvec.end (), ext + ":" + filename); |
7974 | 1262 } |
1263 catch (Magick::Warning& w) | |
1264 { | |
1265 warning ("Magick++ warning: %s", w.what ()); | |
1266 } | |
1267 catch (Magick::ErrorCoder& e) | |
1268 { | |
1269 warning ("Magick++ coder error: %s", e.what ()); | |
1270 } | |
1271 catch (Magick::Exception& e) | |
1272 { | |
1273 error ("Magick++ exception: %s", e.what ()); | |
16988
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
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|
1274 error_state = 1; |
7974 | 1275 } |
1276 } | |
1277 | |
1278 #endif | |
1279 | |
9436
5302df15ad76
__magick_read__.cc: undo unintended change
John W. Eaton <jwe@octave.org>
parents:
9434
diff
changeset
|
1280 DEFUN_DLD (__magick_write__, args, , |
7974 | 1281 "-*- texinfo -*-\n\ |
16988
54b75bed4bc7
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Carnë Draug <carandraug@octave.org>
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|
1282 @deftypefn {Loadable Function} {} __magick_write__ (@var{fname}, @var{fmt}, @var{img}, @var{map}, @var{options})\n\ |
16984
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
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changeset
|
1283 Write image with GraphicsMagick or ImageMagick.\n\ |
997efb8d0b19
imread: implement options Index, Frames, and Info.
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changeset
|
1284 \n\ |
997efb8d0b19
imread: implement options Index, Frames, and Info.
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changeset
|
1285 This is a private internal function not intended for direct use. Instead\n\ |
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
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changeset
|
1286 use @code{imwrite}.\n\ |
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
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diff
changeset
|
1287 \n\ |
997efb8d0b19
imread: implement options Index, Frames, and Info.
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changeset
|
1288 @seealso{imfinfo, imformats, imread, imwrite}\n\ |
7974 | 1289 @end deftypefn") |
1290 { | |
1291 octave_value_list retval; | |
1292 | |
16983
4660d047955e
Make use of gripe_disabled_feature() for image IO functions.
Carnë Draug <carandraug+dev@gmail.com>
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diff
changeset
|
1293 #ifndef HAVE_MAGICK |
4660d047955e
Make use of gripe_disabled_feature() for image IO functions.
Carnë Draug <carandraug+dev@gmail.com>
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diff
changeset
|
1294 gripe_disabled_feature ("imwrite", "Image IO"); |
4660d047955e
Make use of gripe_disabled_feature() for image IO functions.
Carnë Draug <carandraug+dev@gmail.com>
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diff
changeset
|
1295 #else |
4660d047955e
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Carnë Draug <carandraug+dev@gmail.com>
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diff
changeset
|
1296 |
10947
dc74ce93cfc4
initialize GraphicsMagick in all __magick_* functions
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1297 maybe_initialize_magick (); |
dc74ce93cfc4
initialize GraphicsMagick in all __magick_* functions
Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
changeset
|
1298 |
16988
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imwrite: implement WriteMode option.
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changeset
|
1299 if (args.length () != 5 || ! args(0).is_string () || ! args(1).is_string ()) |
7974 | 1300 { |
16988
54b75bed4bc7
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changeset
|
1301 print_usage (); |
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|
1302 return retval; |
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changeset
|
1303 } |
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changeset
|
1304 const std::string filename = args(0).string_value (); |
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imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
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changeset
|
1305 const std::string ext = args(1).string_value (); |
7974 | 1306 |
17226
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17149
diff
changeset
|
1307 const octave_scalar_map options = args(4).scalar_map_value (); |
16988
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changeset
|
1308 if (error_state) |
54b75bed4bc7
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changeset
|
1309 { |
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changeset
|
1310 error ("__magick_write__: OPTIONS must be a struct"); |
17226
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17149
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changeset
|
1311 return retval; |
16988
54b75bed4bc7
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diff
changeset
|
1312 } |
7974 | 1313 |
16988
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diff
changeset
|
1314 const octave_value img = args(2); |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
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changeset
|
1315 const Matrix cmap = args(3).matrix_value (); |
54b75bed4bc7
imwrite: implement WriteMode option.
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changeset
|
1316 if (error_state) |
54b75bed4bc7
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changeset
|
1317 { |
54b75bed4bc7
imwrite: implement WriteMode option.
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changeset
|
1318 error ("__magick_write__: invalid IMG or MAP"); |
17226
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
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changeset
|
1319 return retval; |
16988
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
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changeset
|
1320 } |
17235
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__magick_read__.cc: follow coding guidelines.
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changeset
|
1321 |
17226
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Implement writing of indexed images.
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changeset
|
1322 std::vector<Magick::Image> imvec; |
16988
54b75bed4bc7
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Carnë Draug <carandraug@octave.org>
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16984
diff
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|
1323 |
17226
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Implement writing of indexed images.
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diff
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|
1324 if (cmap.is_empty ()) |
16988
54b75bed4bc7
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Carnë Draug <carandraug@octave.org>
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16984
diff
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|
1325 { |
17332
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
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17240
diff
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|
1326 const octave_value alpha = options.getfield ("alpha"); |
17226
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
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17149
diff
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|
1327 if (img.is_bool_type ()) |
17332
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1328 encode_bool_image (imvec, img.bool_array_value ()); |
17226
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1329 else if (img.is_uint8_type ()) |
17332
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1330 encode_uint_image<uint8NDArray> (imvec, img.uint8_array_value (), |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1331 alpha.uint8_array_value ()); |
17226
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
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|
1332 else if (img.is_uint16_type ()) |
17332
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
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|
1333 encode_uint_image<uint16NDArray> (imvec, img.uint16_array_value (), |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1334 alpha.uint16_array_value ()); |
17228
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Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
1335 else if (img.is_uint32_type ()) |
17332
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1336 encode_uint_image<uint32NDArray> (imvec, img.uint32_array_value (), |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
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diff
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|
1337 alpha.uint32_array_value ()); |
17228
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Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
1338 else if (img.is_float_type ()) |
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
1339 { |
2f1729cae08f
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Carnë Draug <carandraug@octave.org>
parents:
17226
diff
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|
1340 // For image formats that support floating point values, we write |
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
1341 // the actual values. For those who don't, we only use the values |
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
1342 // on the range [0 1] and save integer values. |
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
1343 // But here, even for formats that would support floating point |
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
1344 // values, GM seems unable to do that so we at least make them uint32. |
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
1345 uint32NDArray clip_img; |
17332
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1346 uint32NDArray clip_alpha; |
17228
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
1347 if (img.is_single_type ()) |
17332
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1348 { |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1349 clip_img = img_float2uint<FloatNDArray> (img.float_array_value ()); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1350 clip_alpha = img_float2uint<FloatNDArray> (alpha.float_array_value ()); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1351 } |
17228
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
1352 else |
17332
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1353 { |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1354 clip_img = img_float2uint<NDArray> (img.array_value ()); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1355 clip_alpha = img_float2uint<NDArray> (alpha.array_value ()); |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1356 } |
eb7e9a991ffb
Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents:
17240
diff
changeset
|
1357 encode_uint_image<uint32NDArray> (imvec, clip_img, clip_alpha); |
17228
2f1729cae08f
Initial support for writing of floating point and uint32 images.
Carnë Draug <carandraug@octave.org>
parents:
17226
diff
changeset
|
1358 } |
17226
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
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17149
diff
changeset
|
1359 else |
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1360 { |
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1361 error ("__magick_write__: image type not supported"); |
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1362 return retval; |
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1363 } |
7974 | 1364 } |
1365 else | |
16988
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
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|
1366 { |
17226
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1367 // We should not get floating point indexed images here because we |
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1368 // converted them in __imwrite__.m. We should probably do it here |
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1369 // but it would look much messier. |
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1370 if (img.is_uint8_type ()) |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
1371 encode_indexed_images<uint8NDArray> (imvec, img.uint8_array_value (), |
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
1372 cmap); |
17226
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1373 else if (img.is_uint16_type ()) |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
1374 encode_indexed_images<uint16NDArray> (imvec, img.uint16_array_value (), |
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
1375 cmap); |
17226
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1376 else |
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1377 { |
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1378 error ("__magick_write__: indexed image must be uint8, uint16 or float."); |
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1379 return retval; |
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1380 } |
16988
54b75bed4bc7
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Carnë Draug <carandraug@octave.org>
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16984
diff
changeset
|
1381 } |
54b75bed4bc7
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Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
1382 |
17226
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Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
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17149
diff
changeset
|
1383 const octave_idx_type nFrames = imvec.size (); |
16988
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
1384 |
54b75bed4bc7
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parents:
16984
diff
changeset
|
1385 // FIXME What happens when we try to set with formats that do not support it? |
17226
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1386 const octave_idx_type quality = options.getfield ("quality").int_value (); |
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
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17149
diff
changeset
|
1387 for (octave_idx_type i = 0; i < nFrames; i++) |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
1388 imvec[i].quality (quality); |
16988
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
1389 |
17226
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1390 // If writemode is set to append, read the image and append to it. Even |
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1391 // if set to append, make sure that something was read at all. |
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1392 const std::string writemode = options.getfield ("writemode").string_value (); |
16989
7a69ab84b8c9
__magick_write__: confirm file exists before reading to append.
Carnë Draug <carandraug@octave.org>
parents:
16988
diff
changeset
|
1393 if (writemode == "append" && file_stat (filename).exists ()) |
16988
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
1394 { |
17226
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1395 std::vector<Magick::Image> ini_imvec; |
16988
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
1396 read_file (filename, ini_imvec); |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
1397 if (error_state) |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
1398 return retval; |
17226
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Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1399 if (ini_imvec.size () > 0) |
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1400 { |
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1401 ini_imvec.insert (ini_imvec.end (), imvec.begin (), imvec.end ()); |
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1402 ini_imvec.swap (imvec); |
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1403 } |
16988
54b75bed4bc7
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Carnë Draug <carandraug@octave.org>
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16984
diff
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|
1404 } |
54b75bed4bc7
imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents:
16984
diff
changeset
|
1405 |
17226
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1406 write_file (filename, ext, imvec); |
46805642048f
Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents:
17149
diff
changeset
|
1407 if (error_state) |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
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17228
diff
changeset
|
1408 return retval; |
7974 | 1409 |
1410 #endif | |
16983
4660d047955e
Make use of gripe_disabled_feature() for image IO functions.
Carnë Draug <carandraug+dev@gmail.com>
parents:
16944
diff
changeset
|
1411 return retval; |
7974 | 1412 } |
1413 | |
12805
3641167e5b75
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parents:
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diff
changeset
|
1414 /* |
3641167e5b75
codesprint: *.cc helper functions do not need tests
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parents:
11590
diff
changeset
|
1415 ## No test needed for internal helper function. |
3641167e5b75
codesprint: *.cc helper functions do not need tests
Rik <octave@nomad.inbox5.com>
parents:
11590
diff
changeset
|
1416 %!assert (1) |
3641167e5b75
codesprint: *.cc helper functions do not need tests
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parents:
11590
diff
changeset
|
1417 */ |
3641167e5b75
codesprint: *.cc helper functions do not need tests
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11590
diff
changeset
|
1418 |
17351
80bf005cdf8e
New function __magick_ping__ to speed reading of images.
Carnë Draug <carandraug@octave.org>
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17350
diff
changeset
|
1419 // Gets the minimum information from images such as its size and format. Much |
80bf005cdf8e
New function __magick_ping__ to speed reading of images.
Carnë Draug <carandraug@octave.org>
parents:
17350
diff
changeset
|
1420 // faster than using imfinfo, which slows down a lot since. Note than without |
80bf005cdf8e
New function __magick_ping__ to speed reading of images.
Carnë Draug <carandraug@octave.org>
parents:
17350
diff
changeset
|
1421 // this, we need to read the image once for imfinfo to set defaults (which is |
80bf005cdf8e
New function __magick_ping__ to speed reading of images.
Carnë Draug <carandraug@octave.org>
parents:
17350
diff
changeset
|
1422 // done in Octave language), and then again for the actual reading. |
80bf005cdf8e
New function __magick_ping__ to speed reading of images.
Carnë Draug <carandraug@octave.org>
parents:
17350
diff
changeset
|
1423 DEFUN_DLD (__magick_ping__, args, , |
80bf005cdf8e
New function __magick_ping__ to speed reading of images.
Carnë Draug <carandraug@octave.org>
parents:
17350
diff
changeset
|
1424 "-*- texinfo -*-\n\ |
80bf005cdf8e
New function __magick_ping__ to speed reading of images.
Carnë Draug <carandraug@octave.org>
parents:
17350
diff
changeset
|
1425 @deftypefn {Loadable Function} {} __magick_ping__ (@var{fname}, @var{idx})\n\ |
80bf005cdf8e
New function __magick_ping__ to speed reading of images.
Carnë Draug <carandraug@octave.org>
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17350
diff
changeset
|
1426 Ping image information with GraphicsMagick or ImageMagick.\n\ |
80bf005cdf8e
New function __magick_ping__ to speed reading of images.
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parents:
17350
diff
changeset
|
1427 \n\ |
80bf005cdf8e
New function __magick_ping__ to speed reading of images.
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parents:
17350
diff
changeset
|
1428 This is a private internal function not intended for direct use.\n\ |
80bf005cdf8e
New function __magick_ping__ to speed reading of images.
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17350
diff
changeset
|
1429 \n\ |
80bf005cdf8e
New function __magick_ping__ to speed reading of images.
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17350
diff
changeset
|
1430 @seealso{imfinfo}\n\ |
80bf005cdf8e
New function __magick_ping__ to speed reading of images.
Carnë Draug <carandraug@octave.org>
parents:
17350
diff
changeset
|
1431 @end deftypefn") |
80bf005cdf8e
New function __magick_ping__ to speed reading of images.
Carnë Draug <carandraug@octave.org>
parents:
17350
diff
changeset
|
1432 { |
80bf005cdf8e
New function __magick_ping__ to speed reading of images.
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parents:
17350
diff
changeset
|
1433 octave_value retval; |
80bf005cdf8e
New function __magick_ping__ to speed reading of images.
Carnë Draug <carandraug@octave.org>
parents:
17350
diff
changeset
|
1434 #ifndef HAVE_MAGICK |
80bf005cdf8e
New function __magick_ping__ to speed reading of images.
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parents:
17350
diff
changeset
|
1435 gripe_disabled_feature ("imfinfo", "Image IO"); |
80bf005cdf8e
New function __magick_ping__ to speed reading of images.
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parents:
17350
diff
changeset
|
1436 #else |
80bf005cdf8e
New function __magick_ping__ to speed reading of images.
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parents:
17350
diff
changeset
|
1437 maybe_initialize_magick (); |
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1438 |
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1439 if (args.length () < 1 || ! args(0).is_string ()) |
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|
1440 { |
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|
1441 print_usage (); |
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New function __magick_ping__ to speed reading of images.
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|
1442 return retval; |
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1443 } |
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|
1444 const std::string filename = args(0).string_value (); |
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|
1445 int idx; |
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|
1446 if (args.length () > 1) |
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|
1447 idx = args(1).int_value () -1; |
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1448 else |
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|
1449 idx = 0; |
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1450 |
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1451 Magick::Image img; |
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1452 img.subImage (idx); |
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|
1453 img.subRange (1); |
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|
1454 img.ping (filename); |
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|
1455 static const char *fields[] = {"rows", "columns", "format", 0}; |
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|
1456 octave_scalar_map ping = octave_scalar_map (string_vector (fields)); |
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|
1457 ping.setfield ("rows", octave_value (img.rows ())); |
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|
1458 ping.setfield ("columns", octave_value (img.columns ())); |
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|
1459 ping.setfield ("format", octave_value (img.magick ())); |
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|
1460 retval = octave_value (ping); |
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|
1461 #endif |
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1462 return retval; |
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1463 } |
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|
1464 |
8165
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|
1465 #ifdef HAVE_MAGICK |
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1466 static octave_value |
17350 | 1467 magick_to_octave_value (const Magick::CompressionType& magick) |
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1468 { |
17350 | 1469 switch (magick) |
1470 { | |
1471 case Magick::NoCompression: | |
1472 return octave_value ("none"); | |
1473 case Magick::BZipCompression: | |
1474 return octave_value ("bzip"); | |
1475 case Magick::FaxCompression: | |
1476 return octave_value ("fax3"); | |
1477 case Magick::Group4Compression: | |
1478 return octave_value ("fax4"); | |
1479 case Magick::JPEGCompression: | |
1480 return octave_value ("jpeg"); | |
1481 case Magick::LZWCompression: | |
1482 return octave_value ("lzw"); | |
1483 case Magick::RLECompression: | |
1484 // This is named "rle" for the HDF, but the same thing is named | |
1485 // "ccitt" and "PackBits" for binary and non-binary images in TIFF. | |
1486 return octave_value ("rle"); | |
1487 case Magick::ZipCompression: | |
1488 return octave_value ("deflate"); | |
17362
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1489 |
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1490 // The following are present only in recent versions of GraphicsMagick. |
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1491 // At the moment the only use of this would be to have imfinfo report |
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1492 // the compression method. In the future, someone could implement |
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1493 // the Compression option for imwrite in which case a macro in |
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1494 // configure.ac will have to check for their presence of this. |
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1495 // See bug #39913 |
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1496 // case Magick::LZMACompression: |
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1497 // return octave_value ("lzma"); |
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1498 // case Magick::JPEG2000Compression: |
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1499 // return octave_value ("jpeg2000"); |
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1500 // case Magick::JBIG1Compression: |
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|
1501 // return octave_value ("jbig1"); |
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1502 // case Magick::JBIG2Compression: |
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1503 // return octave_value ("jbig2"); |
17350 | 1504 default: |
1505 return octave_value ("undefined"); | |
1506 } | |
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1507 } |
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|
1508 |
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|
1509 static octave_value |
17350 | 1510 magick_to_octave_value (const Magick::EndianType& magick) |
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1511 { |
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|
1512 switch (magick) |
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|
1513 { |
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1514 case Magick::LSBEndian: |
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1515 return octave_value ("little-endian"); |
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1516 case Magick::MSBEndian: |
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1517 return octave_value ("big-endian"); |
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|
1518 default: |
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1519 return octave_value ("undefined"); |
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|
1520 } |
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1521 } |
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|
1522 |
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|
1523 static octave_value |
17350 | 1524 magick_to_octave_value (const Magick::OrientationType& magick) |
1525 { | |
1526 switch (magick) | |
1527 { | |
1528 // Values come from the TIFF6 spec | |
1529 case Magick::TopLeftOrientation: | |
1530 return octave_value (1); | |
1531 case Magick::TopRightOrientation: | |
1532 return octave_value (2); | |
1533 case Magick::BottomRightOrientation: | |
1534 return octave_value (3); | |
1535 case Magick::BottomLeftOrientation: | |
1536 return octave_value (4); | |
1537 case Magick::LeftTopOrientation: | |
1538 return octave_value (5); | |
1539 case Magick::RightTopOrientation: | |
1540 return octave_value (6); | |
1541 case Magick::RightBottomOrientation: | |
1542 return octave_value (7); | |
1543 case Magick::LeftBottomOrientation: | |
1544 return octave_value (8); | |
1545 default: | |
1546 return octave_value (1); | |
1547 } | |
1548 } | |
1549 | |
1550 static octave_value | |
1551 magick_to_octave_value (const Magick::ResolutionType& magick) | |
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1552 { |
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1553 switch (magick) |
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1554 { |
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1555 case Magick::PixelsPerInchResolution: |
17350 | 1556 return octave_value ("Inch"); |
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1557 case Magick::PixelsPerCentimeterResolution: |
17350 | 1558 return octave_value ("Centimeter"); |
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1559 default: |
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1560 return octave_value ("undefined"); |
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|
1561 } |
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|
1562 } |
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1563 |
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1564 // Meant to be shared with both imfinfo and imwrite. |
17350 | 1565 static std::map<octave_idx_type, std::string> |
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1566 init_disposal_methods () |
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1567 { |
17350 | 1568 // GIF Specifications: |
1569 // | |
1570 // Disposal Method - Indicates the way in which the graphic is to | |
1571 // be treated after being displayed. | |
1572 // | |
1573 // 0 - No disposal specified. The decoder is | |
1574 // not required to take any action. | |
1575 // 1 - Do not dispose. The graphic is to be left | |
1576 // in place. | |
1577 // 2 - Restore to background color. The area used by the | |
1578 // graphic must be restored to the background color. | |
1579 // 3 - Restore to previous. The decoder is required to | |
1580 // restore the area overwritten by the graphic with | |
1581 // what was there prior to rendering the graphic. | |
1582 // 4-7 - To be defined. | |
1583 static std::map<octave_idx_type, std::string> methods; | |
1584 if (methods.empty ()) | |
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1585 { |
17350 | 1586 methods[0] = "doNotSpecify"; |
1587 methods[1] = "leaveInPlace"; | |
1588 methods[2] = "restoreBG"; | |
1589 methods[3] = "restorePrevious"; | |
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1590 } |
17350 | 1591 return methods; |
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1592 } |
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1593 |
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1594 static bool |
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1595 is_valid_exif (const std::string& val) |
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1596 { |
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1597 // Sometimes GM will return the string "unknown" instead of empty |
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1598 // for an empty value. |
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1599 return (! val.empty () && val != "unknown"); |
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1600 } |
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1601 |
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1602 static void |
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1603 fill_exif (octave_scalar_map& map, Magick::Image& img, |
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1604 const std::string& key) |
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1605 { |
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1606 const std::string attr = img.attribute ("EXIF:" + key); |
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1607 if (is_valid_exif (attr)) |
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1608 map.setfield (key, octave_value (attr)); |
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1609 return; |
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1610 } |
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1611 |
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1612 static void |
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1613 fill_exif_ints (octave_scalar_map& map, Magick::Image& img, |
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1614 const std::string& key) |
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1615 { |
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Expand imfinfo to read Exif tags and GPS information.
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|
1616 const std::string attr = img.attribute ("EXIF:" + key); |
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Expand imfinfo to read Exif tags and GPS information.
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|
1617 if (is_valid_exif (attr)) |
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Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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|
1618 { |
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Expand imfinfo to read Exif tags and GPS information.
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|
1619 // string of the type "float,float,float....." |
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Expand imfinfo to read Exif tags and GPS information.
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|
1620 float number; |
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Expand imfinfo to read Exif tags and GPS information.
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|
1621 ColumnVector values (std::count (attr.begin (), attr.end (), ',') +1); |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
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|
1622 std::string sub; |
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Expand imfinfo to read Exif tags and GPS information.
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|
1623 std::istringstream sstream (attr); |
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Expand imfinfo to read Exif tags and GPS information.
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|
1624 octave_idx_type n = 0; |
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Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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|
1625 while (std::getline (sstream, sub, char (','))) |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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|
1626 { |
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Expand imfinfo to read Exif tags and GPS information.
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|
1627 sscanf (sub.c_str (), "%f", &number); |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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|
1628 values(n++) = number; |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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|
1629 } |
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Expand imfinfo to read Exif tags and GPS information.
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|
1630 map.setfield (key, octave_value (values)); |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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|
1631 } |
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Expand imfinfo to read Exif tags and GPS information.
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|
1632 return; |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
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|
1633 } |
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Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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diff
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|
1634 |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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diff
changeset
|
1635 static void |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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|
1636 fill_exif_floats (octave_scalar_map& map, Magick::Image& img, |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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|
1637 const std::string& key) |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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|
1638 { |
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Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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|
1639 const std::string attr = img.attribute ("EXIF:" + key); |
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Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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|
1640 if (is_valid_exif (attr)) |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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|
1641 { |
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Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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diff
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|
1642 // string of the type "int/int,int/int,int/int....." |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
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changeset
|
1643 int numerator; |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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diff
changeset
|
1644 int denominator; |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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diff
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|
1645 ColumnVector values (std::count (attr.begin (), attr.end (), ',') +1); |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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|
1646 std::string sub; |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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diff
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|
1647 std::istringstream sstream (attr); |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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diff
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|
1648 octave_idx_type n = 0; |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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diff
changeset
|
1649 while (std::getline (sstream, sub, ',')) |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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|
1650 { |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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diff
changeset
|
1651 sscanf (sub.c_str (), "%i/%i", &numerator, &denominator); |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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diff
changeset
|
1652 values(n++) = double (numerator) / double (denominator); |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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|
1653 } |
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Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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diff
changeset
|
1654 map.setfield (key, octave_value (values)); |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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|
1655 } |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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diff
changeset
|
1656 return; |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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|
1657 } |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
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diff
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|
1658 |
8165
75014ec4ac84
__magick_read__.cc: only define magick_to_octave_value functions if HAVE_MAGICK is defined
John W. Eaton <jwe@octave.org>
parents:
8144
diff
changeset
|
1659 #endif |
75014ec4ac84
__magick_read__.cc: only define magick_to_octave_value functions if HAVE_MAGICK is defined
John W. Eaton <jwe@octave.org>
parents:
8144
diff
changeset
|
1660 |
9436
5302df15ad76
__magick_read__.cc: undo unintended change
John W. Eaton <jwe@octave.org>
parents:
9434
diff
changeset
|
1661 DEFUN_DLD (__magick_finfo__, args, , |
8144
01fac748b680
Add the 'imfinfo' function for reading image file information.
sh@sh-laptop
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diff
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|
1662 "-*- texinfo -*-\n\ |
14854
5ae9f0f77635
maint: Use Octave coding conventions for coddling parenthis is DLD-FUNCTIONS directory
Rik <octave@nomad.inbox5.com>
parents:
14846
diff
changeset
|
1663 @deftypefn {Loadable Function} {} __magick_finfo__ (@var{fname})\n\ |
16984
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
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diff
changeset
|
1664 Read image information with GraphicsMagick or ImageMagick.\n\ |
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
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diff
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|
1665 \n\ |
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
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diff
changeset
|
1666 This is a private internal function not intended for direct use. Instead\n\ |
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
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diff
changeset
|
1667 use @code{imfinfo}.\n\ |
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
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diff
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|
1668 \n\ |
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
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diff
changeset
|
1669 @seealso{imfinfo, imformats, imread, imwrite}\n\ |
8144
01fac748b680
Add the 'imfinfo' function for reading image file information.
sh@sh-laptop
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diff
changeset
|
1670 @end deftypefn") |
01fac748b680
Add the 'imfinfo' function for reading image file information.
sh@sh-laptop
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diff
changeset
|
1671 { |
10333
0c42b6b7da24
imfinfo: support image files with multiple frames
Søren Hauberg <soren@hauberg.org>
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10298
diff
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|
1672 octave_value retval; |
8144
01fac748b680
Add the 'imfinfo' function for reading image file information.
sh@sh-laptop
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diff
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|
1673 |
16983
4660d047955e
Make use of gripe_disabled_feature() for image IO functions.
Carnë Draug <carandraug+dev@gmail.com>
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16944
diff
changeset
|
1674 #ifndef HAVE_MAGICK |
4660d047955e
Make use of gripe_disabled_feature() for image IO functions.
Carnë Draug <carandraug+dev@gmail.com>
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diff
changeset
|
1675 gripe_disabled_feature ("imfinfo", "Image IO"); |
4660d047955e
Make use of gripe_disabled_feature() for image IO functions.
Carnë Draug <carandraug+dev@gmail.com>
parents:
16944
diff
changeset
|
1676 #else |
10947
dc74ce93cfc4
initialize GraphicsMagick in all __magick_* functions
Jaroslav Hajek <highegg@gmail.com>
parents:
10840
diff
changeset
|
1677 maybe_initialize_magick (); |
dc74ce93cfc4
initialize GraphicsMagick in all __magick_* functions
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
1678 |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
1679 if (args.length () < 1 || ! args(0).is_string ()) |
8144
01fac748b680
Add the 'imfinfo' function for reading image file information.
sh@sh-laptop
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diff
changeset
|
1680 { |
01fac748b680
Add the 'imfinfo' function for reading image file information.
sh@sh-laptop
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diff
changeset
|
1681 print_usage (); |
10333
0c42b6b7da24
imfinfo: support image files with multiple frames
Søren Hauberg <soren@hauberg.org>
parents:
10298
diff
changeset
|
1682 return retval; |
8144
01fac748b680
Add the 'imfinfo' function for reading image file information.
sh@sh-laptop
parents:
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diff
changeset
|
1683 } |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
1684 const std::string filename = args(0).string_value (); |
8144
01fac748b680
Add the 'imfinfo' function for reading image file information.
sh@sh-laptop
parents:
8090
diff
changeset
|
1685 |
17350 | 1686 std::vector<Magick::Image> imvec; |
1687 read_file (filename, imvec); | |
1688 if (error_state) | |
1689 return retval; | |
17359
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
1690 const octave_idx_type nFrames = imvec.size (); |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1691 const std::string format = imvec[0].magick (); |
17350 | 1692 |
17359
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
1693 // Here's how this function works. We need to return a struct array, one |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1694 // struct for each image in the file (remember, there are image |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1695 // that allow for multiple images in the same file). Now, Matlab seems |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1696 // to have format specific code so the fields on the struct are different |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1697 // for each format. It only has a small subset that is common to all |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1698 // of them, the others are undocumented. Because we try to abstract from |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1699 // the formats we always return the same list of fields (note that with |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1700 // GM we support more than 88 formats. That's way more than Matlab, and |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1701 // I don't want to write specific code for each of them). |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1702 // |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1703 // So what we do is we create an octave_scalar_map, fill it with the |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1704 // information for that image, and then insert it into an octave_map. |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1705 // Because in the same file, different images may have values for |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1706 // different fields, we can't create a field only if there's a value. |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1707 // Bad things happen if we merge octave_scalar_maps with different |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1708 // fields from the others (suppose for example a TIFF file with 4 images, |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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diff
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|
1709 // where only the third image has a colormap. |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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diff
changeset
|
1710 |
17350 | 1711 static const char *fields[] = |
8144
01fac748b680
Add the 'imfinfo' function for reading image file information.
sh@sh-laptop
parents:
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diff
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|
1712 { |
17350 | 1713 // These are fields that must always appear for Matlab. |
1714 "Filename", | |
1715 "FileModDate", | |
1716 "FileSize", | |
1717 "Format", | |
1718 "FormatVersion", | |
1719 "Width", | |
1720 "Height", | |
1721 "BitDepth", | |
1722 "ColorType", | |
10333
0c42b6b7da24
imfinfo: support image files with multiple frames
Søren Hauberg <soren@hauberg.org>
parents:
10298
diff
changeset
|
1723 |
17350 | 1724 // These are format specific or not existent in Matlab. The most |
1725 // annoying thing is that Matlab may have different names for the | |
17359
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1726 // same thing in different formats. |
17350 | 1727 "DelayTime", |
1728 "DisposalMethod", | |
1729 "LoopCount", | |
1730 "ByteOrder", | |
1731 "Gamma", | |
1732 "Chromaticities", | |
1733 "Comment", | |
1734 "Quality", | |
1735 "Compression", // same as CompressionType | |
1736 "Colormap", // same as ColorTable (in PNG) | |
1737 "Orientation", | |
1738 "ResolutionUnit", | |
1739 "XResolution", | |
1740 "YResolution", | |
17359
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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diff
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|
1741 "Software", // sometimes is an Exif tag |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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17351
diff
changeset
|
1742 "Make", // actually an Exif tag |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
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diff
changeset
|
1743 "Model", // actually an Exif tag |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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diff
changeset
|
1744 "DateTime", // actually an Exif tag |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1745 "ImageDescription", // actually an Exif tag |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1746 "Artist", // actually an Exif tag |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1747 "Copyright", // actually an Exif tag |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1748 "DigitalCamera", |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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17351
diff
changeset
|
1749 "GPSInfo", |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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17351
diff
changeset
|
1750 // Notes for the future: GM allows to get many attributes, and even has |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1751 // attribute() to obtain arbitrary ones, that may exist in only some |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
1752 // cases. The following is a list of some methods and into what possible |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
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1753 // Matlab compatible values they may be converted. |
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1754 // |
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1755 // colorSpace() -> PhotometricInterpretation |
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1756 // backgroundColor() -> BackgroundColor |
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1757 // interlaceType() -> Interlaced, InterlaceType, and PlanarConfiguration |
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1758 // label() -> Title |
17350 | 1759 0 |
1760 }; | |
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1761 |
17359
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1762 // The one we will return at the end |
17350 | 1763 octave_map info (dim_vector (nFrames, 1), string_vector (fields)); |
11586
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1764 |
17359
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1765 // Some of the fields in the struct are about file information and will be |
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1766 // the same for all images in the file. So we create a template, fill in |
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1767 // those values, and make a copy of the template for each image. |
17350 | 1768 octave_scalar_map template_info = (string_vector (fields)); |
1769 | |
1770 template_info.setfield ("Format", octave_value (format)); | |
1771 // We can't actually get FormatVersion but even Matlab sometimes can't. | |
1772 template_info.setfield ("FormatVersion", octave_value ("")); | |
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1773 |
17350 | 1774 const file_stat fs (filename); |
1775 if (fs) | |
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1776 { |
17350 | 1777 const octave_localtime mtime (fs.mtime ()); |
1778 const std::string filetime = mtime.strftime ("%e-%b-%Y %H:%M:%S"); | |
1779 template_info.setfield ("Filename", octave_value (filename)); | |
1780 template_info.setfield ("FileModDate", octave_value (filetime)); | |
1781 template_info.setfield ("FileSize", octave_value (fs.size ())); | |
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1782 } |
17350 | 1783 else |
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1784 { |
17350 | 1785 error ("imfinfo: error reading '%s': %s", |
1786 filename.c_str (), fs.error ().c_str ()); | |
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1787 return retval; |
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1788 } |
17350 | 1789 |
1790 for (octave_idx_type frame = 0; frame < nFrames; frame++) | |
1791 { | |
1792 octave_scalar_map info_frame (template_info); | |
1793 const Magick::Image img = imvec[frame]; | |
1794 | |
1795 info_frame.setfield ("Width", octave_value (img.columns ())); | |
1796 info_frame.setfield ("Height", octave_value (img.rows ())); | |
1797 info_frame.setfield ("BitDepth", | |
1798 octave_value (get_depth (const_cast<Magick::Image&> (img)))); | |
1799 | |
1800 // Stuff related to colormap, image class and type | |
1801 // Because GM is too smart for us... Read the comments in is_indexed() | |
1802 { | |
1803 std::string color_type; | |
1804 Matrix cmap; | |
1805 if (is_indexed (img)) | |
1806 { | |
1807 color_type = "indexed"; | |
1808 cmap = read_maps (const_cast<Magick::Image&> (img))(0).matrix_value (); | |
1809 } | |
1810 else | |
1811 { | |
1812 switch (img.type ()) | |
1813 { | |
1814 case Magick::BilevelType: | |
1815 case Magick::GrayscaleType: | |
1816 case Magick::GrayscaleMatteType: | |
1817 color_type = "grayscale"; | |
1818 break; | |
1819 | |
1820 case Magick::TrueColorType: | |
1821 case Magick::TrueColorMatteType: | |
1822 color_type = "truecolor"; | |
1823 break; | |
1824 | |
1825 case Magick::PaletteType: | |
1826 case Magick::PaletteMatteType: | |
1827 // we should never get here or is_indexed needs to be fixed | |
1828 color_type = "indexed"; | |
1829 break; | |
1830 | |
1831 case Magick::ColorSeparationType: | |
1832 case Magick::ColorSeparationMatteType: | |
1833 color_type = "CMYK"; | |
1834 break; | |
1835 | |
1836 default: | |
1837 color_type = "undefined"; | |
1838 } | |
1839 } | |
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1840 info_frame.setfield ("ColorType", octave_value (color_type)); |
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1841 info_frame.setfield ("Colormap", octave_value (cmap)); |
17350 | 1842 } |
1843 | |
1844 { | |
1845 // Not all images have chroma values. In such cases, they'll | |
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1846 // be all zeros. So rather than send a matrix of zeros, we will |
17350 | 1847 // check for that, and send an empty vector instead. |
1848 RowVector chromaticities (8); | |
1849 double* chroma_fvec = chromaticities.fortran_vec (); | |
1850 img.chromaWhitePoint (&chroma_fvec[0], &chroma_fvec[1]); | |
1851 img.chromaRedPrimary (&chroma_fvec[2], &chroma_fvec[3]); | |
1852 img.chromaGreenPrimary (&chroma_fvec[4], &chroma_fvec[5]); | |
1853 img.chromaBluePrimary (&chroma_fvec[6], &chroma_fvec[7]); | |
1854 if (chromaticities.nnz () == 0) | |
1855 chromaticities = RowVector (0); | |
1856 info_frame.setfield ("Chromaticities", octave_value (chromaticities)); | |
1857 } | |
1858 | |
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1859 info_frame.setfield ("Gamma", octave_value (img.gamma ())); |
17350 | 1860 info_frame.setfield ("XResolution", octave_value (img.xResolution ())); |
1861 info_frame.setfield ("YResolution", octave_value (img.yResolution ())); | |
1862 info_frame.setfield ("DelayTime", octave_value (img.animationDelay ())); | |
1863 info_frame.setfield ("LoopCount", octave_value (img.animationIterations ())); | |
1864 info_frame.setfield ("Quality", octave_value (img.quality ())); | |
1865 info_frame.setfield ("Comment", octave_value (img.comment ())); | |
1866 | |
1867 info_frame.setfield ("Compression", | |
1868 magick_to_octave_value (img.compressType ())); | |
1869 info_frame.setfield ("Orientation", | |
1870 magick_to_octave_value (img.orientation ())); | |
1871 info_frame.setfield ("ResolutionUnit", | |
1872 magick_to_octave_value (img.resolutionUnits ())); | |
1873 info_frame.setfield ("ByteOrder", | |
1874 magick_to_octave_value (img.endian ())); | |
1875 | |
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1876 // It is not possible to know if there's an Exif field so we just |
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1877 // check for the Exif Version value. If it does exists, then we |
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1878 // bother about looking for specific fields. |
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1879 { |
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1880 Magick::Image& cimg = const_cast<Magick::Image&> (img); |
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1881 |
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1882 // These will be in Exif tags but must appear as fields in the |
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1883 // base struct array, not as another struct in one of its fields. |
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1884 // This is likely because they belong to the Baseline TIFF specs |
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1885 // and may appear out of the Exif tag. So first we check if it |
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1886 // exists outside the Exif tag. |
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1887 // See Section 4.6.4, table 4, page 28 of Exif specs version 2.3 |
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1888 // (CIPA DC- 008-Translation- 2010) |
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1889 static const char *base_exif_str_fields[] = { |
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1890 "DateTime", |
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1891 "ImageDescription", |
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1892 "Make", |
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1893 "Model", |
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1894 "Software", |
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1895 "Artist", |
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1896 "Copyright", |
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1897 0, |
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1898 }; |
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1899 static const string_vector base_exif_str (base_exif_str_fields); |
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1900 static const octave_idx_type n_base_exif_str = base_exif_str.numel (); |
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1901 for (octave_idx_type field = 0; field < n_base_exif_str; field++) |
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1902 { |
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1903 info_frame.setfield (base_exif_str[field], |
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1904 octave_value (cimg.attribute (base_exif_str[field]))); |
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1905 fill_exif (info_frame, cimg, base_exif_str[field]); |
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1906 } |
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1907 |
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1908 octave_scalar_map camera; |
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1909 octave_scalar_map gps; |
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1910 if (! cimg.attribute ("EXIF:ExifVersion").empty ()) |
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1911 { |
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1912 // See Section 4.6.5, table 7 and 8, over pages page 42 to 43 |
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1913 // of Exif specs version 2.3 (CIPA DC- 008-Translation- 2010) |
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1914 |
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1915 // Listed on the Exif specs as being of type ASCII. |
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1916 static const char *exif_str_fields[] = { |
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1917 "RelatedSoundFile", |
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1918 "DateTimeOriginal", |
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1919 "DateTimeDigitized", |
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1920 "SubSecTime", |
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1921 "DateTimeOriginal", |
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1922 "SubSecTimeOriginal", |
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1923 "SubSecTimeDigitized", |
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1924 "ImageUniqueID", |
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1925 "CameraOwnerName", |
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1926 "BodySerialNumber", |
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1927 "LensMake", |
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1928 "LensModel", |
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1929 "LensSerialNumber", |
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1930 "SpectralSensitivity", |
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1931 // These last two are of type undefined but most likely will |
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1932 // be strings. Even if they're not GM returns a string anyway. |
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1933 "UserComment", |
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1934 "MakerComment", |
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1935 0 |
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1936 }; |
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1937 static const string_vector exif_str (exif_str_fields); |
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1938 static const octave_idx_type n_exif_str = exif_str.numel (); |
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1939 for (octave_idx_type field = 0; field < n_exif_str; field++) |
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1940 fill_exif (camera, cimg, exif_str[field]); |
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1941 |
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1942 // Listed on the Exif specs as being of type SHORT or LONG. |
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1943 static const char *exif_int_fields[] = { |
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1944 "ColorSpace", |
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1945 "ExifImageWidth", // PixelXDimension (CPixelXDimension in Matlab) |
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1946 "ExifImageHeight", // PixelYDimension (CPixelYDimension in Matlab) |
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1947 "PhotographicSensitivity", |
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1948 "StandardOutputSensitivity", |
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1949 "RecommendedExposureIndex", |
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1950 "ISOSpeed", |
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1951 "ISOSpeedLatitudeyyy", |
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1952 "ISOSpeedLatitudezzz", |
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1953 "FocalPlaneResolutionUnit", |
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1954 "FocalLengthIn35mmFilm", |
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1955 // Listed as SHORT or LONG but with more than 1 count. |
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1956 "SubjectArea", |
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1957 "SubjectLocation", |
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1958 // While the following are an integer, their value have a meaning |
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1959 // that must be represented as a string for Matlab compatibility. |
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1960 // For example, a 3 on ExposureProgram, would return |
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1961 // "Aperture priority" as defined on the Exif specs. |
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1962 "ExposureProgram", |
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1963 "SensitivityType", |
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1964 "MeteringMode", |
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1965 "LightSource", |
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1966 "Flash", |
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1967 "SensingMethod", |
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1968 "FileSource", |
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1969 "CustomRendered", |
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1970 "ExposureMode", |
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1971 "WhiteBalance", |
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1972 "SceneCaptureType", |
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1973 "GainControl", |
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1974 "Contrast", |
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1975 "Saturation", |
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1976 "Sharpness", |
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1977 "SubjectDistanceRange", |
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1978 0 |
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1979 }; |
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1980 static const string_vector exif_int (exif_int_fields); |
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1981 static const octave_idx_type n_exif_int = exif_int.numel (); |
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1982 for (octave_idx_type field = 0; field < n_exif_int; field++) |
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1983 fill_exif_ints (camera, cimg, exif_int[field]); |
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1984 |
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1985 // Listed as RATIONAL or SRATIONAL |
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1986 static const char *exif_float_fields[] = { |
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1987 "Gamma", |
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1988 "CompressedBitsPerPixel", |
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1989 "ExposureTime", |
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1990 "FNumber", |
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1991 "ShutterSpeedValue", // SRATIONAL |
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1992 "ApertureValue", |
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1993 "BrightnessValue", // SRATIONAL |
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1994 "ExposureBiasValue", // SRATIONAL |
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1995 "MaxApertureValue", |
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1996 "SubjectDistance", |
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1997 "FocalLength", |
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1998 "FlashEnergy", |
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1999 "FocalPlaneXResolution", |
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2000 "FocalPlaneYResolution", |
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2001 "ExposureIndex", |
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2002 "DigitalZoomRatio", |
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2003 // Listed as RATIONAL or SRATIONAL with more than 1 count. |
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2004 "LensSpecification", |
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|
2005 0 |
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|
2006 }; |
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2007 static const string_vector exif_float (exif_float_fields); |
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2008 static const octave_idx_type n_exif_float = exif_float.numel (); |
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2009 for (octave_idx_type field = 0; field < n_exif_float; field++) |
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2010 fill_exif_floats (camera, cimg, exif_float[field]); |
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|
2011 |
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2012 // Inside a Exif field, it is possible that there is also a |
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2013 // GPS field. This is not the same as ExifVersion but seems |
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2014 // to be how we have to check for it. |
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2015 if (cimg.attribute ("EXIF:GPSInfo") != "unknown") |
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|
2016 { |
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2017 // The story here is the same as with Exif. |
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2018 // See Section 4.6.6, table 15 on page 68 of Exif specs |
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2019 // version 2.3 (CIPA DC- 008-Translation- 2010) |
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|
2020 |
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2021 static const char *gps_str_fields[] = { |
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2022 "GPSLatitudeRef", |
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2023 "GPSLongitudeRef", |
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2024 "GPSAltitudeRef", |
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2025 "GPSSatellites", |
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2026 "GPSStatus", |
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2027 "GPSMeasureMode", |
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2028 "GPSSpeedRef", |
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2029 "GPSTrackRef", |
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|
2030 "GPSImgDirectionRef", |
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|
2031 "GPSMapDatum", |
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2032 "GPSDestLatitudeRef", |
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|
2033 "GPSDestLongitudeRef", |
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|
2034 "GPSDestBearingRef", |
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2035 "GPSDestDistanceRef", |
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2036 "GPSDateStamp", |
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2037 0 |
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|
2038 }; |
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2039 static const string_vector gps_str (gps_str_fields); |
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2040 static const octave_idx_type n_gps_str = gps_str.numel (); |
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2041 for (octave_idx_type field = 0; field < n_gps_str; field++) |
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2042 fill_exif (gps, cimg, gps_str[field]); |
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|
2043 |
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2044 static const char *gps_int_fields[] = { |
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2045 "GPSDifferential", |
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2046 0 |
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2047 }; |
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2048 static const string_vector gps_int (gps_int_fields); |
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2049 static const octave_idx_type n_gps_int = gps_int.numel (); |
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2050 for (octave_idx_type field = 0; field < n_gps_int; field++) |
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2051 fill_exif_ints (gps, cimg, gps_int[field]); |
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|
2052 |
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2053 static const char *gps_float_fields[] = { |
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2054 "GPSAltitude", |
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2055 "GPSDOP", |
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changeset
|
2056 "GPSSpeed", |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2057 "GPSTrack", |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2058 "GPSImgDirection", |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2059 "GPSDestBearing", |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2060 "GPSDestDistance", |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2061 "GPSHPositioningError", |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2062 // Listed as RATIONAL or SRATIONAL with more than 1 count. |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2063 "GPSLatitude", |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2064 "GPSLongitude", |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2065 "GPSTimeStamp", |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2066 "GPSDestLatitude", |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2067 "GPSDestLongitude", |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2068 0 |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2069 }; |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2070 static const string_vector gps_float (gps_float_fields); |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2071 static const octave_idx_type n_gps_float = gps_float.numel (); |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2072 for (octave_idx_type field = 0; field < n_gps_float; field++) |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2073 fill_exif_floats (gps, cimg, gps_float[field]); |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2074 |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2075 } |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2076 } |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2077 info_frame.setfield ("DigitalCamera", octave_value (camera)); |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2078 info_frame.setfield ("GPSInfo", octave_value (gps)); |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2079 } |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2080 |
17350 | 2081 info.fast_elem_insert (frame, info_frame); |
2082 } | |
17359
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2083 |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2084 if (format == "GIF") |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2085 { |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2086 static std::map<octave_idx_type, std::string> disposal_methods |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2087 = init_disposal_methods (); |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2088 string_vector methods (nFrames); |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2089 for (octave_idx_type frame = 0; frame < nFrames; frame++) |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2090 methods[frame] = disposal_methods[imvec[frame].gifDisposeMethod ()]; |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2091 info.setfield ("DisposalMethod", Cell (methods)); |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2092 } |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2093 else |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2094 info.setfield ("DisposalMethod", |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2095 Cell (dim_vector (nFrames, 1), octave_value (""))); |
cf5d41cc3695
Expand imfinfo to read Exif tags and GPS information.
Carnë Draug <carandraug@octave.org>
parents:
17351
diff
changeset
|
2096 |
17350 | 2097 retval = octave_value (info); |
8144
01fac748b680
Add the 'imfinfo' function for reading image file information.
sh@sh-laptop
parents:
8090
diff
changeset
|
2098 #endif |
10333
0c42b6b7da24
imfinfo: support image files with multiple frames
Søren Hauberg <soren@hauberg.org>
parents:
10298
diff
changeset
|
2099 return retval; |
8144
01fac748b680
Add the 'imfinfo' function for reading image file information.
sh@sh-laptop
parents:
8090
diff
changeset
|
2100 } |
01fac748b680
Add the 'imfinfo' function for reading image file information.
sh@sh-laptop
parents:
8090
diff
changeset
|
2101 |
12805
3641167e5b75
codesprint: *.cc helper functions do not need tests
Rik <octave@nomad.inbox5.com>
parents:
11590
diff
changeset
|
2102 /* |
3641167e5b75
codesprint: *.cc helper functions do not need tests
Rik <octave@nomad.inbox5.com>
parents:
11590
diff
changeset
|
2103 ## No test needed for internal helper function. |
3641167e5b75
codesprint: *.cc helper functions do not need tests
Rik <octave@nomad.inbox5.com>
parents:
11590
diff
changeset
|
2104 %!assert (1) |
3641167e5b75
codesprint: *.cc helper functions do not need tests
Rik <octave@nomad.inbox5.com>
parents:
11590
diff
changeset
|
2105 */ |
3641167e5b75
codesprint: *.cc helper functions do not need tests
Rik <octave@nomad.inbox5.com>
parents:
11590
diff
changeset
|
2106 |
16901
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2107 DEFUN_DLD (__magick_formats__, args, , |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2108 "-*- texinfo -*-\n\ |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2109 @deftypefn {Loadable Function} {} __magick_imformats__ (@var{formats})\n\ |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2110 Fill formats info with GraphicsMagick CoderInfo.\n\ |
16984
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
2111 \n\ |
997efb8d0b19
imread: implement options Index, Frames, and Info.
Carnë Draug <carandraug@octave.org>
parents:
16983
diff
changeset
|
2112 @seealso{imfinfo, imformats, imread, imwrite}\n\ |
16901
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2113 @end deftypefn") |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2114 { |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2115 octave_value retval; |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2116 #ifndef HAVE_MAGICK |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2117 gripe_disabled_feature ("imformats", "Image IO"); |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2118 #else |
17235
96a1c132e3c6
__magick_read__.cc: follow coding guidelines.
Carnë Draug <carandraug@octave.org>
parents:
17228
diff
changeset
|
2119 if (args.length () != 1 || ! args(0).is_map ()) |
16901
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2120 { |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2121 print_usage (); |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2122 return retval; |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2123 } |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2124 octave_map formats = args(0).map_value (); |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2125 |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2126 maybe_initialize_magick (); |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2127 for (octave_idx_type idx = 0; idx < formats.numel (); idx++) |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2128 { |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2129 try |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2130 { |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2131 octave_scalar_map fmt = formats.checkelem (idx); |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2132 Magick::CoderInfo coder (fmt.getfield ("coder").string_value ()); |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2133 |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2134 fmt.setfield ("description", octave_value (coder.description ())); |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2135 fmt.setfield ("multipage", coder.isMultiFrame () ? true : false); |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2136 // default for read and write is a function handle. If we can't |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2137 // read or write them, them set it to an empty value |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2138 if (! coder.isReadable ()) |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2139 fmt.setfield ("read", Matrix ()); |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2140 if (! coder.isWritable ()) |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2141 fmt.setfield ("write", Matrix ()); |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2142 formats.fast_elem_insert (idx, fmt); |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2143 } |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2144 catch (Magick::Exception& e) |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2145 { |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2146 // Exception here are missing formats. So we remove the format |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2147 // from the structure and reduce idx. |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2148 formats.delete_elements (idx); |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2149 idx--; |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2150 } |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2151 } |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2152 retval = formats; |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2153 #endif |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2154 return retval; |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2155 } |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2156 |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2157 /* |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2158 ## No test needed for internal helper function. |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2159 %!assert (1) |
861516dcad19
New function imformats.
Carnë Draug <carandraug@octave.org>
parents:
16871
diff
changeset
|
2160 */ |