octave-nkf: scripts/image/hsv2rgb.m annotate

annotate scripts/image/hsv2rgb.m @ 20614:10ec79b47808

use new string_value method to handle value extraction errors * __voronoi__.cc, chol.cc, colamd.cc, fftw.cc: Use new string_value method.

author	John W. Eaton <jwe@octave.org>
date	Thu, 08 Oct 2015 18:15:56 -0400
parents	131ce8cfaa80
children

rev	line source
19731 4197fc428c7d maint: Update copyright notices for 2015. John W. Eaton <jwe@octave.org> parents: 17744 diff changeset	1 ## Copyright (C) 1999-2015 Kai Habel
20393 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	2 ## Copyright (C) 2015 Carnë Draug
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	3 ##
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	4 ## This file is part of Octave.
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	5 ##
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	6 ## Octave is free software; you can redistribute it and/or modify it
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	7 ## under the terms of the GNU General Public License as published by
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6547 diff changeset	8 ## the Free Software Foundation; either version 3 of the License, or (at
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6547 diff changeset	9 ## your option) any later version.
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	10 ##
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	11 ## Octave is distributed in the hope that it will be useful, but
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	12 ## WITHOUT ANY WARRANTY; without even the implied warranty of
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	14 ## General Public License for more details.
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	15 ##
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	16 ## You should have received a copy of the GNU General Public License
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6547 diff changeset	17 ## along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6547 diff changeset	18 ## <http://www.gnu.org/licenses/>.
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	19
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	20 ## -- texinfo --
14260 1f911333ed3d doc: Update docstrings for functions in image/ directory Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	21 ## @deftypefn {Function File} {@var{rgb_map} =} hsv2rgb (@var{hsv_map})
1f911333ed3d doc: Update docstrings for functions in image/ directory Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	22 ## @deftypefnx {Function File} {@var{rgb_img} =} hsv2rgb (@var{hsv_img})
20393 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	23 ## Transform a colormap or image from HSV to RGB color space.
15683 806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	24 ##
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	25 ## A color in HSV space is represented by hue, saturation and value
20393 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	26 ## (brightness) levels in a cylindrical coordinate system. Hue is the
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	27 ## azimuth and describes the dominant color. Saturation is the radial
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	28 ## distance and gives the amount of hue mixed into the color. Value is
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	29 ## the height and is the amount of light in the color.
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	30 ##
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	31 ## The input can be both a colormap or RGB image. In the case of floating
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	32 ## point input, values are expected to be on the [0 1] range. In the case
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	33 ## of hue (azimuth), since the value corresponds to an angle,
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	34 ## @code{mod (h, 1)} is used.
15683 806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	35 ##
20393 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	36 ## @example
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	37 ## >> hsv2rgb ([0.5 1 1])
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	38 ## @result{} ans = 0 1 1
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	39 ##
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	40 ## >> hsv2rgb ([2.5 1 1])
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	41 ## @result{} ans = 0 1 1
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	42 ##
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	43 ## >> hsv2rgb ([3.5 1 1])
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	44 ## @result{} ans = 0 1 1
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	45 ## @end example
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	46 ##
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	47 ## Output class and size will be the same as input.
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	48 ##
14260 1f911333ed3d doc: Update docstrings for functions in image/ directory Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	49 ## @seealso{rgb2hsv, ind2rgb, ntsc2rgb}
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	50 ## @end deftypefn
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	51
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	52 ## Author: Kai Habel <kai.habel@gmx.de>
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	53 ## Adapted-by: jwe
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	54
20393 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	55 function rgb = hsv2rgb (hsv)
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	56
14260 1f911333ed3d doc: Update docstrings for functions in image/ directory Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	57 ## Each color value x = (r,g,b) is calculated with
1f911333ed3d doc: Update docstrings for functions in image/ directory Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	58 ## x = (1-sat)val+satval*f_x(hue)
1f911333ed3d doc: Update docstrings for functions in image/ directory Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	59 ## where f_x(hue) is a piecewise defined function for
1f911333ed3d doc: Update docstrings for functions in image/ directory Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	60 ## each color with f_r(hue-2/3) = f_g(hue) = f_b(hue-1/3).
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	61
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	62 if (nargin != 1)
6046 34f96dd5441b [project @ 2006-10-10 16:10:25 by jwe] jwe parents: 5642 diff changeset	63 print_usage ();
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	64 endif
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	65
20404 131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20393 diff changeset	66 [hsv, cls, sz, is_im, is_nd, is_int] ...
131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20393 diff changeset	67 = colorspace_conversion_input_check ("hsv2rgb", "HSV", hsv);
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	68
20393 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	69 h = hsv(:,1);
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	70 s = hsv(:,2);
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	71 v = hsv(:,3);
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	72
20393 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	73 ## Values of Saturation and Value should also be in the [0 1] range. With
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	74 ## the exception of hue, values outside this range don't make any sense
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	75 ## in a cylindrical coordinate system but we must return something for
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	76 ## Matlab compatibility. User case is when a function returns an hsv
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	77 ## image just slightly outside the range due to floating point rounding
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	78 ## errors.
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	79
15683 806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	80 ## Prefill rgb map with v*(1-s)
20393 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	81 rgb = repmat (v .* (1 - s), 1, 3);
15683 806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	82
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	83 ## red = hue-2/3 : green = hue : blue = hue-1/3
20393 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	84 ## Apply modulo 1 to keep within range [0, 1]
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	85 hue = mod ([h-2/3 h h-1/3], 1);
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	86
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	87 ## factor s*v -> f
15683 806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	88 f = repmat (s .* v, 1, 3);
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	89
15683 806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	90 ## add svhue-function to rgb map
20393 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	91 rgb += f .* (6 * (hue < 1/6) .* hue
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	92 + (hue >= 1/6 & hue < 1/2)
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	93 + (hue >= 1/2 & hue < 2/3) .* (4 - 6 * hue));
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	94
20404 131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20393 diff changeset	95 rgb = colorspace_conversion_revert (rgb, cls, sz, is_im, is_nd, is_int);
7375 4fbfce35012a [project @ 2008-01-15 01:04:06 by jwe] jwe parents: 7017 diff changeset	96
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	97 endfunction
15683 806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	98
19867 9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions. Rik <rik@octave.org> parents: 19731 diff changeset	99 ## Test pure colors
20393 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	100 %!assert (hsv2rgb ([0 0 1]), [1 1 1])
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	101 %!assert (hsv2rgb ([1 1 0]), [0 0 0])
15683 806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	102 %!assert (hsv2rgb ([0 1 1]), [1 0 0])
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	103 %!assert (hsv2rgb ([1 1 1]), [1 0 0])
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	104 %!assert (hsv2rgb ([1/3 1 1]), [0 1 0])
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	105 %!assert (hsv2rgb ([2/3 1 1]), [0 0 1])
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	106
20393 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	107 %!assert (hsv2rgb ([0 0.5 0.5]), hsv2rgb ([1 0.5 0.5]))
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	108
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	109 ## Not Matlab compatible (Matlab would return [1/2 1/12 1/12]) but
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	110 ## it's also invalid input. This is, however, the same output as python
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	111 ## colorsys module.
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	112 %!assert (hsv2rgb ([0.5 -0.5 0.5]), [0.75 0.5 0.5])
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	113
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	114 ## Not Matlab compatible. Matlab returns NaN when hue is outside the
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	115 ## [0 1] range. But since it's an angle, we can manage it.
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	116 %!assert (hsv2rgb ([0 0.5 0.5]), hsv2rgb ([2 0.5 0.5]))
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	117 %!assert (hsv2rgb ([0.5 0.5 0.5]), hsv2rgb ([2.5 0.5 0.5]), eps)
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	118
15683 806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	119 %!test
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	120 %! hsv_map = rand (64, 3);
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	121 %! assert (rgb2hsv (hsv2rgb (hsv_map)), hsv_map, 1e-6);
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	122
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	123 %!test
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	124 %! hsv_img = rand (64, 64, 3);
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	125 %! assert (rgb2hsv (hsv2rgb (hsv_img)), hsv_img, 1e-6);
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	126
20393 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	127 ## support sparse input
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	128 %!assert (hsv2rgb (sparse ([0 0 1])), sparse ([1 1 1]))
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	129 %!assert (hsv2rgb (sparse ([0 1 1])), sparse ([1 0 0]))
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	130 %!assert (hsv2rgb (sparse ([1 1 1])), sparse ([1 0 0]))
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	131
19867 9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions. Rik <rik@octave.org> parents: 19731 diff changeset	132 ## Test input validation
15683 806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	133 %!error hsv2rgb ()
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	134 %!error hsv2rgb (1,2)
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	135 %!error <invalid data type> hsv2rgb ({1})
20393 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19867 diff changeset	136 %!error <HSV must be a colormap or HSV image> hsv2rgb (ones (2,2))
20404 131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20393 diff changeset	137
131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20393 diff changeset	138 ## Test ND input
131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20393 diff changeset	139 %!test
131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20393 diff changeset	140 %! hsv = rand (16, 16, 3, 5);
131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20393 diff changeset	141 %! rgb = zeros (size (hsv));
131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20393 diff changeset	142 %! for i = 1:5
131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20393 diff changeset	143 %! rgb(:,:,:,i) = hsv2rgb (hsv(:,:,:,i));
131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20393 diff changeset	144 %! endfor
131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20393 diff changeset	145 %! assert (hsv2rgb (hsv), rgb)

Mercurial > octave-nkf

annotate scripts/image/hsv2rgb.m @ 20614:10ec79b47808