Mercurial > octave-nkf

annotate scripts/image/private/__imwrite__.m @ 19899:e9f89866074c

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
maint: Cleanup some .m files to follow Octave coding conventions. * accumarray.m, validateattributes.m, iscolormap.m, __imread__.m, __imwrite__.m, imwrite_filename.m, strread.m, getappdata.m, appearance/annotation.m, shrinkfaces.m, rundemos.m, runtests.m, datenum.m, datestr.m: Break long lines before && and ||.
author John W. Eaton <jwe@octave.org>
date Thu, 26 Feb 2015 13:13:40 -0500
parents 9fc020886ae9
children 5b8e4f668c53
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
19731
4197fc428c7d maint: Update copyright notices for 2015.
John W. Eaton <jwe@octave.org>
parents: 17855
diff changeset
1 ## Copyright (C) 2008-2015 John W. Eaton
4197fc428c7d maint: Update copyright notices for 2015.
John W. Eaton <jwe@octave.org>
parents: 17855
diff changeset
2 ## Copyright (C) 2013-2015 Carnë Draug
16916
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
3 ##
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
4 ## This file is part of Octave.
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
5 ##
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
6 ## Octave is free software; you can redistribute it and/or modify it
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
7 ## under the terms of the GNU General Public License as published by
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
8 ## the Free Software Foundation; either version 3 of the License, or (at
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
9 ## your option) any later version.
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
10 ##
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
11 ## Octave is distributed in the hope that it will be useful, but
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
12 ## WITHOUT ANY WARRANTY; without even the implied warranty of
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
14 ## General Public License for more details.
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
15 ##
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
16 ## You should have received a copy of the GNU General Public License
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
17 ## along with Octave; see the file COPYING. If not, see
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
18 ## <http://www.gnu.org/licenses/>.
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
19
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
20 ## This function does all the work of imwrite. It exists here as private
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
21 ## function so that imwrite can use other functions if imformats is
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
22 ## configured to. It is also needed so that imformats can create a
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
23 ## function handle for it.
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
24
17086
3db796f89695 Rename private core_imfnc functions to follow the __fnc__ convention style.
Carnë Draug <carandraug@octave.org>
parents: 16988
diff changeset
25 function __imwrite__ (img, varargin)
16916
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
26
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
27 if (nargin < 2 || ! (isnumeric (img) || islogical (img)))
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
28 print_usage ("imwrite");
17266
b1a09f72a520 imwrite: fix input checking for colormap (bug #39791)
Carnë Draug <carandraug@octave.org>
parents: 17234
diff changeset
29 endif
b1a09f72a520 imwrite: fix input checking for colormap (bug #39791)
Carnë Draug <carandraug@octave.org>
parents: 17234
diff changeset
30
b1a09f72a520 imwrite: fix input checking for colormap (bug #39791)
Carnë Draug <carandraug@octave.org>
parents: 17234
diff changeset
31 [filename, ext, map, param_list] = imwrite_filename (varargin{:});
b1a09f72a520 imwrite: fix input checking for colormap (bug #39791)
Carnë Draug <carandraug@octave.org>
parents: 17234
diff changeset
32
b1a09f72a520 imwrite: fix input checking for colormap (bug #39791)
Carnë Draug <carandraug@octave.org>
parents: 17234
diff changeset
33 if (isempty (img))
17234
0b8f78cdc5cd imwrite: give error if image is an empty or sparse matrix.
Carnë Draug <carandraug@octave.org>
parents: 17226
diff changeset
34 error ("imwrite: invalid empty image");
0b8f78cdc5cd imwrite: give error if image is an empty or sparse matrix.
Carnë Draug <carandraug@octave.org>
parents: 17226
diff changeset
35 elseif (issparse (img) || issparse (map))
0b8f78cdc5cd imwrite: give error if image is an empty or sparse matrix.
Carnë Draug <carandraug@octave.org>
parents: 17226
diff changeset
36 error ("imwrite: sparse images are not supported");
16916
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
37 endif
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
38
16988
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
39 if (rem (numel (param_list), 2) != 0)
17176
abf384f5d243 maint: Remove unneeded input validation from internal fcns in private/ directories.
Rik <rik@octave.org>
parents: 17086
diff changeset
40 error ("imwrite: no pair for all arguments (odd number left)");
16916
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
41 endif
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
42
16988
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
43 ## set default for options
17226
46805642048f Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents: 17176
diff changeset
44 options = struct ("writemode", "overwrite",
17855
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
45 "disposalmethod", {repmat({"doNotSpecify"}, 1, size (img, 4))},
17332
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents: 17266
diff changeset
46 "quality", 75,
17854
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
47 "delaytime", ones (1, size (img, 4)) *500, # 0.5 seconds
17853
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
48 "loopcount", 0, ## this is actually Inf
17332
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents: 17266
diff changeset
49 "alpha", cast ([], class (img)));
16988
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
50
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
51 for idx = 1:2:numel (param_list)
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
52
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
53 switch (tolower (param_list{idx}))
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
54
17332
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents: 17266
diff changeset
55 case "alpha"
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents: 17266
diff changeset
56 options.alpha = param_list{idx+1};
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents: 17266
diff changeset
57 if (! isnumeric (options.alpha))
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents: 17266
diff changeset
58 error ("imwrite: value for %s option must be a numeric matrix",
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents: 17266
diff changeset
59 param_list{idx});
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents: 17266
diff changeset
60 elseif (size (options.alpha, 3) != 1)
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents: 17266
diff changeset
61 error ("imwrite: 3rd dimension of matrix for %s must be singleton",
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents: 17266
diff changeset
62 param_list{idx});
19899
e9f89866074c maint: Cleanup some .m files to follow Octave coding conventions.
John W. Eaton <jwe@octave.org>
parents: 19867
diff changeset
63 elseif (ndims (options.alpha) > 4
e9f89866074c maint: Cleanup some .m files to follow Octave coding conventions.
John W. Eaton <jwe@octave.org>
parents: 19867
diff changeset
64 || any (size (options.alpha)([1 2]) != size (img)([1 2]))
e9f89866074c maint: Cleanup some .m files to follow Octave coding conventions.
John W. Eaton <jwe@octave.org>
parents: 19867
diff changeset
65 || size (options.alpha, 4) != size (img, 4))
17332
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents: 17266
diff changeset
66 error ("imwrite: matrix for %s must have same dimension as image",
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents: 17266
diff changeset
67 param_list{idx});
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents: 17266
diff changeset
68 endif
eb7e9a991ffb Implement writing of CMYK and fix writing of image alpha channel (bug #32986).
Carnë Draug <carandraug@octave.org>
parents: 17266
diff changeset
69
17854
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
70 case "delaytime"
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
71 options.delaytime = param_list{idx+1};
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
72 if (! isnumeric (options.delaytime))
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
73 error ("imwrite: value for %s option must be numeric",
16988
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
74 param_list{idx});
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
75 endif
17854
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
76 options.delaytime *= 100; # convert to 1/100ths of second
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
77 if (isscalar (options.delaytime))
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
78 options.delaytime(1:size (img, 4)) = options.delaytime;
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
79 elseif (size (img, 4) != numel (options.delaytime))
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
80 error ("imwrite: value for %s must either be a scalar or the number of frames",
16988
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
81 param_list{idx});
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
82 endif
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19731
diff changeset
83 if (any (options.delaytime(:) < 0)
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19731
diff changeset
84 || any (options.delaytime(:) > 65535))
17854
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
85 error ("imwrite: value for %s must be between 0 and 655.35 seconds",
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
86 param_list{idx});
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
87 endif
16988
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
88
17855
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
89 case "disposalmethod"
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
90 options.disposalmethod = param_list{idx+1};
19899
e9f89866074c maint: Cleanup some .m files to follow Octave coding conventions.
John W. Eaton <jwe@octave.org>
parents: 19867
diff changeset
91 if (! ischar (options.disposalmethod)
e9f89866074c maint: Cleanup some .m files to follow Octave coding conventions.
John W. Eaton <jwe@octave.org>
parents: 19867
diff changeset
92 && ! iscellstr (options.disposalmethod))
17855
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
93 error ("imwrite: value for %s must be a string or cell array of strings",
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
94 param_list{idx});
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
95 elseif (! iscell (options.disposalmethod))
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
96 options.disposalmethod = {options.disposalmethod};
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
97 endif
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
98 options.disposalmethod = tolower (options.disposalmethod);
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
99 matches = ismember (options.disposalmethod,
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19731
diff changeset
100 {"donotspecify", "leaveinplace", ...
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19731
diff changeset
101 "restorebg", "restoreprevious"});
17855
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
102 if (any (! matches))
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
103 error ("imwrite: unknow method %s for option %s",
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
104 options.disposalmethod{find (! matches, 1)},
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
105 param_list{idx});
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
106 endif
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
107 if (isscalar (options.disposalmethod))
19867
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19731
diff changeset
108 options.disposalmethod = repmat (options.disposalmethod, ...
9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions.
Rik <rik@octave.org>
parents: 19731
diff changeset
109 1, size (img, 4));
17855
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
110 elseif (numel (options.disposalmethod) != size (img, 4))
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
111 error ("imwrite: if value %s is a cell array must have same length as number of frames",
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
112 param_list{idx});
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
113 endif
bfbe5dcc9943 imwrite: implement DisposalMethod option.
Carnë Draug <carandraug@octave.org>
parents: 17854
diff changeset
114
17853
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
115 case "loopcount"
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
116 options.loopcount = param_list{idx+1};
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
117 if (! isscalar (options.loopcount) || ! isnumeric (options.loopcount)
19899
e9f89866074c maint: Cleanup some .m files to follow Octave coding conventions.
John W. Eaton <jwe@octave.org>
parents: 19867
diff changeset
118 || (! isinf (options.loopcount)
e9f89866074c maint: Cleanup some .m files to follow Octave coding conventions.
John W. Eaton <jwe@octave.org>
parents: 19867
diff changeset
119 && (options.loopcount < 0 || options.loopcount > 65535)))
17853
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
120 error ("imwrite: value for %s must be Inf or between 0 and 65535",
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
121 param_list{idx});
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
122 endif
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
123 ## Graphics Magick is a bit weird here. A value of 0 will be an
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
124 ## infinite loop, a value of 1, will really be no loop, while a
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
125 ## value of 2 or more will be that number of loops (checked
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
126 ## with GNOME image viewer). This means that there is no way
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
127 ## to make it loop only once. See
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
128 ## https://sourceforge.net/p/graphicsmagick/bugs/249/
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
129 ## There is also the problem of setting this when there is only
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
130 ## a single frame. See
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
131 ## https://sourceforge.net/p/graphicsmagick/bugs/248/
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
132 if (isinf (options.loopcount))
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
133 options.loopcount = 0;
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
134 elseif (options.loopcount == 0 || options.loopcount == 1)
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
135 options.loopcount++;
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
136 endif
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
137 options.loopcount = floor (options.loopcount);
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
138
17854
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
139 case "quality",
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
140 options.quality = param_list{idx+1};
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
141 if (! isnumeric (options.quality) || ! isscalar (options.quality)
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
142 || options.quality < 0 || options.quality > 100)
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
143 error ("imwrite: value for %s option must be a scalar between 0 and 100",
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
144 param_list{idx});
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
145 endif
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
146 options.quality = round (options.quality);
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
147
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
148 case "writemode",
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
149 options.writemode = param_list{idx+1};
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
150 if (! ischar (options.writemode)
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
151 || ! any (strcmpi (options.writemode, {"append", "overwrite"})))
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
152 error ('imwrite: value for %s option must be "append" or "overwrite"',
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
153 param_list{idx});
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
154 endif
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
155 options.writemode = tolower (options.writemode);
adb0ba0d0c13 imwrite: implement DelayTime option.
Carnë Draug <carandraug@octave.org>
parents: 17853
diff changeset
156
16988
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
157 otherwise
17853
aacb9da13df6 imwrite: implement LoopCount option.
Carnë Draug <carandraug@octave.org>
parents: 17850
diff changeset
158 error ("imwrite: invalid PARAMETER `%s'", param_list{idx});
16988
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
159
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
160 endswitch
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
161 endfor
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
162
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
163 if (! isempty (map))
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
164 if (! iscolormap (map))
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
165 error ("imwrite: invalid MAP for indexed image");
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
166 elseif (ndims (img) != 2 && ndims (img) != 4)
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
167 error ("imwrite: indexed image must have 2 or 4 dimensions (found %i)", ndims (img));
16916
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
168 endif
17850
45e325002810 imwrite: fill colormap with black (RGB 0,0,0) for missing colors (bug #33615)
Carnë Draug <carandraug@octave.org>
parents: 17744
diff changeset
169
45e325002810 imwrite: fill colormap with black (RGB 0,0,0) for missing colors (bug #33615)
Carnë Draug <carandraug@octave.org>
parents: 17744
diff changeset
170 ## Fill in the colormap as required with rgb (0, 0, 0) (bug #33615)
45e325002810 imwrite: fill colormap with black (RGB 0,0,0) for missing colors (bug #33615)
Carnë Draug <carandraug@octave.org>
parents: 17744
diff changeset
171 nColors = rows (map);
45e325002810 imwrite: fill colormap with black (RGB 0,0,0) for missing colors (bug #33615)
Carnë Draug <carandraug@octave.org>
parents: 17744
diff changeset
172 if (any (strcmp (class (img), {"uint8", "uint16", "logical"})))
45e325002810 imwrite: fill colormap with black (RGB 0,0,0) for missing colors (bug #33615)
Carnë Draug <carandraug@octave.org>
parents: 17744
diff changeset
173 required_colors = max (img(:)) +1;
45e325002810 imwrite: fill colormap with black (RGB 0,0,0) for missing colors (bug #33615)
Carnë Draug <carandraug@octave.org>
parents: 17744
diff changeset
174 else
45e325002810 imwrite: fill colormap with black (RGB 0,0,0) for missing colors (bug #33615)
Carnë Draug <carandraug@octave.org>
parents: 17744
diff changeset
175 required_colors = max (img(:));
45e325002810 imwrite: fill colormap with black (RGB 0,0,0) for missing colors (bug #33615)
Carnë Draug <carandraug@octave.org>
parents: 17744
diff changeset
176 endif
45e325002810 imwrite: fill colormap with black (RGB 0,0,0) for missing colors (bug #33615)
Carnë Draug <carandraug@octave.org>
parents: 17744
diff changeset
177 if (nColors < required_colors)
45e325002810 imwrite: fill colormap with black (RGB 0,0,0) for missing colors (bug #33615)
Carnë Draug <carandraug@octave.org>
parents: 17744
diff changeset
178 warning ("imwrite: MAP has not enough colors. Filling with black");
45e325002810 imwrite: fill colormap with black (RGB 0,0,0) for missing colors (bug #33615)
Carnë Draug <carandraug@octave.org>
parents: 17744
diff changeset
179 map(nColors+1:required_colors,:) = 0;
45e325002810 imwrite: fill colormap with black (RGB 0,0,0) for missing colors (bug #33615)
Carnë Draug <carandraug@octave.org>
parents: 17744
diff changeset
180 endif
45e325002810 imwrite: fill colormap with black (RGB 0,0,0) for missing colors (bug #33615)
Carnë Draug <carandraug@octave.org>
parents: 17744
diff changeset
181
17226
46805642048f Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents: 17176
diff changeset
182 ## If the image is floating point, then we convert it to integer (makes
46805642048f Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents: 17176
diff changeset
183 ## it easier in __magick_write__ since it only handles integers. Also,
46805642048f Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents: 17176
diff changeset
184 ## if it's floating point, it has an offset of 1
46805642048f Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents: 17176
diff changeset
185 if (isfloat (img))
46805642048f Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents: 17176
diff changeset
186 if (rows (map) <= 256)
46805642048f Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents: 17176
diff changeset
187 img = uint8 (img - 1);
46805642048f Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents: 17176
diff changeset
188 else
46805642048f Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents: 17176
diff changeset
189 img = uint16 (img - 1);
46805642048f Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents: 17176
diff changeset
190 endif
16916
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
191 endif
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
192 endif
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
193
16988
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
194 if (ndims (img) > 4)
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
195 error ("imwrite: invalid %d-dimensional image data", ndims (img));
17226
46805642048f Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents: 17176
diff changeset
196 elseif (all (size (img, 3) != [1 3 4]))
46805642048f Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents: 17176
diff changeset
197 ## 1, 3, or 4 for grayscle, RGB, and CMYK respectively
46805642048f Implement writing of indexed images.
Carnë Draug <carandraug@octave.org>
parents: 17176
diff changeset
198 error ("imwrite: IMG 3rd dimension must be 1, 3, or 4");
16988
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
199 endif
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
200
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
201 __magick_write__ (filename, ext, img, map, options);
54b75bed4bc7 imwrite: implement WriteMode option.
Carnë Draug <carandraug@octave.org>
parents: 16965
diff changeset
202
16916
59f575e504dc Connect imwrite with imformats.
Carnë Draug <carandraug@octave.org>
parents:
diff changeset
203 endfunction
17338
1c89599167a6 maint: End m-files with 1 blank line.
Rik <rik@octave.org>
parents: 17332
diff changeset
204