octave: scripts/image/hsv2rgb.m annotate

annotate scripts/image/hsv2rgb.m @ 21562:6c2fd62db1f7

maint: Eliminate accidental double spaces in code. * make_int.cc, file-editor-tab.h, file-editor.cc, shortcut-manager.h, __contourc__.cc, cellfun.cc, debug.cc, errwarn.h, graphics.in.h, jit-ir.h, oct-stream.cc, quadcc.cc, qz.cc, sparse-xdiv.cc, symtab.cc, __init_fltk__.cc, ov-class.cc, ov-float.h, ov-scalar.h, op-int.h, CNDArray.cc, CSparse.cc, MSparse.cc, Sparse.cc, boolNDArray.cc, chNDArray.cc, dNDArray.cc, dSparse.cc, fCNDArray.cc, fNDArray.cc, int16NDArray.cc, int32NDArray.cc, int64NDArray.cc, int8NDArray.cc, intNDArray.cc, uint16NDArray.cc, uint32NDArray.cc, uint64NDArray.cc, uint8NDArray.cc, randgamma.h, randmtzig.h, randpoisson.c, randpoisson.h, Sparse-op-defs.h, oct-time.cc, kpse.cc, lo-array-errwarn.h, lo-ieee.h, del2.m, num2str.m, __isequal__.m, lookfor.m, hsv2rgb.m, colorspace_conversion_revert.m, fminbnd.m, create_pkgadddel.m, shading.m, struct2hdl.m, gallery.m, discrete_cdf.m, kolmogorov_smirnov_test.m, assert.m, datestr.m, classes.tst, jit.tst: Eliminate accidental double spaces in code.

author	Rik <rik@octave.org>
date	Wed, 30 Mar 2016 15:19:12 -0700
parents	acd6e203031d
children	ecce63c99c3f

rev	line source
19697 4197fc428c7d maint: Update copyright notices for 2015. John W. Eaton <jwe@octave.org> parents: 17744 diff changeset	1 ## Copyright (C) 1999-2015 Kai Habel
20358 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 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 --
20852 516bb87ea72e 2015 Code Sprint: remove class of function from docstring for all m-files. Rik <rik@octave.org> parents: 20716 diff changeset	21 ## @deftypefn {} {@var{rgb_map} =} hsv2rgb (@var{hsv_map})
516bb87ea72e 2015 Code Sprint: remove class of function from docstring for all m-files. Rik <rik@octave.org> parents: 20716 diff changeset	22 ## @deftypefnx {} {@var{rgb_img} =} hsv2rgb (@var{hsv_img})
20358 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 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
20358 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 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: 19833 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: 19833 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: 19833 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: 19833 diff changeset	30 ##
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 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: 19833 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: 19833 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: 19833 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 ##
20358 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	36 ## @example
20716 1ecee53513d7 doc: Peridodic grammar check of documentation. Rik <rik@octave.org> parents: 20676 diff changeset	37 ## @group
20358 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	38 ## >> hsv2rgb ([0.5 1 1])
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	39 ## @result{} ans = 0 1 1
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	40 ##
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	41 ## >> hsv2rgb ([2.5 1 1])
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	42 ## @result{} ans = 0 1 1
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	43 ##
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	44 ## >> hsv2rgb ([3.5 1 1])
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	45 ## @result{} ans = 0 1 1
20716 1ecee53513d7 doc: Peridodic grammar check of documentation. Rik <rik@octave.org> parents: 20676 diff changeset	46 ## @end group
20358 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	47 ## @end example
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	48 ##
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	49 ## 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: 19833 diff changeset	50 ##
14260 1f911333ed3d doc: Update docstrings for functions in image/ directory Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	51 ## @seealso{rgb2hsv, ind2rgb, ntsc2rgb}
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	52 ## @end deftypefn
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	53
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	54 ## Author: Kai Habel <kai.habel@gmx.de>
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	55 ## Adapted-by: jwe
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	56
20358 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	57 function rgb = hsv2rgb (hsv)
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	58
14260 1f911333ed3d doc: Update docstrings for functions in image/ directory Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	59 ## 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	60 ## 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	61 ## 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	62 ## 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	63
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	64 if (nargin != 1)
6046 34f96dd5441b [project @ 2006-10-10 16:10:25 by jwe] jwe parents: 5642 diff changeset	65 print_usage ();
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	66 endif
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	67
20676 1672bb8882dd Remove unused arguments in private functions for colorspace arguments. Carnë Draug <carandraug@octave.org> parents: 20665 diff changeset	68 [hsv, sz, is_im, is_nd] ...
20369 131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20358 diff changeset	69 = colorspace_conversion_input_check ("hsv2rgb", "HSV", hsv);
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	70
20358 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	71 h = hsv(:,1);
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	72 s = hsv(:,2);
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	73 v = hsv(:,3);
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	74
20358 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	75 ## 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: 19833 diff changeset	76 ## 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: 19833 diff changeset	77 ## 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: 19833 diff changeset	78 ## 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: 19833 diff changeset	79 ## 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: 19833 diff changeset	80 ## errors.
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	81
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 ## Prefill rgb map with v*(1-s)
20358 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	83 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	84
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14552 diff changeset	85 ## red = hue-2/3 : green = hue : blue = hue-1/3
20358 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	86 ## 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: 19833 diff changeset	87 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	88
63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	89 ## 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	90 f = repmat (s .* v, 1, 3);
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	91
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	92 ## add svhue-function to rgb map
20358 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	93 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: 19833 diff changeset	94 + (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: 19833 diff changeset	95 + (hue >= 1/2 & hue < 2/3) .* (4 - 6 * hue));
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	96
20676 1672bb8882dd Remove unused arguments in private functions for colorspace arguments. Carnë Draug <carandraug@octave.org> parents: 20665 diff changeset	97 rgb = colorspace_conversion_revert (rgb, sz, is_im, is_nd);
7375 4fbfce35012a [project @ 2008-01-15 01:04:06 by jwe] jwe parents: 7017 diff changeset	98
3803 63c75bc3db82 [project @ 2001-02-28 08:24:40 by jwe] jwe parents: diff changeset	99 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	100
19833 9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions. Rik <rik@octave.org> parents: 19697 diff changeset	101 ## Test pure colors
20358 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	102 %!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: 19833 diff changeset	103 %!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	104 %!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	105 %!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	106 %!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	107 %!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	108
20358 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	109 %!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: 19833 diff changeset	110
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	111 ## Not Matlab compatible (Matlab would return [1/2 1/12 1/12]) but
21562 6c2fd62db1f7 maint: Eliminate accidental double spaces in code. Rik <rik@octave.org> parents: 21443 diff changeset	112 ## it's also invalid input. This is, however, the same output as Python
20358 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	113 ## colorsys module.
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	114 %!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: 19833 diff changeset	115
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	116 ## 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: 19833 diff changeset	117 ## [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: 19833 diff changeset	118 %!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: 19833 diff changeset	119 %!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: 19833 diff changeset	120
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	121 %!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	122 %! 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	123 %! 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	124
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 %!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	126 %! 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	127 %! 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	128
20358 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	129 ## support sparse input
84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	130 %!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: 19833 diff changeset	131 %!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: 19833 diff changeset	132 %!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: 19833 diff changeset	133
19833 9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions. Rik <rik@octave.org> parents: 19697 diff changeset	134 ## 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	135 %!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	136 %!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	137 %!error <invalid data type> hsv2rgb ({1})
20358 84ca63c8a038 hsv2rgb: relax input check and support for N dimensional images (bug #45456) Carnë Draug <carandraug@octave.org> parents: 19833 diff changeset	138 %!error <HSV must be a colormap or HSV image> hsv2rgb (ones (2,2))
20369 131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20358 diff changeset	139
131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20358 diff changeset	140 ## Test ND input
131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20358 diff changeset	141 %!test
131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20358 diff changeset	142 %! hsv = rand (16, 16, 3, 5);
131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20358 diff changeset	143 %! rgb = zeros (size (hsv));
131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20358 diff changeset	144 %! for i = 1:5
131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20358 diff changeset	145 %! rgb(:,:,:,i) = hsv2rgb (hsv(:,:,:,i));
131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20358 diff changeset	146 %! endfor
131ce8cfaa80 Relax input in functions that convert between colorspaces (bug #45456) Carnë Draug <carandraug@octave.org> parents: 20358 diff changeset	147 %! assert (hsv2rgb (hsv), rgb)
20664 a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	148
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	149 ## Test output class and size for input images.
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	150 ## Most of the tests only test for colormap input.
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	151
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	152 %!test
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	153 %! rgb = hsv2rgb (rand (10, 10, 3));
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	154 %! assert (class (rgb), "double")
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	155 %! assert (size (rgb), [10 10 3])
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	156
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	157 %!test
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	158 %! rgb = hsv2rgb (rand (10, 10, 3, "single"));
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	159 %! assert (class (rgb), "single")
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	160 %! assert (size (rgb), [10 10 3])
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	161
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	162 %!test
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	163 %! rgb = (rand (10, 10, 3) * 3 ) - 0.5; # values outside range [0 1]
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	164 %! rgb = hsv2rgb (rgb);
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	165 %! assert (class (rgb), "double")
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	166 %! assert (size (rgb), [10 10 3])
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	167
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	168 %!test
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	169 %! rgb = (rand (10, 10, 3, "single") * 3 ) - 0.5; # values outside range [0 1]
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	170 %! rgb = hsv2rgb (rgb);
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	171 %! assert (class (rgb), "single")
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	172 %! assert (size (rgb), [10 10 3])
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	173
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	174 %!test
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	175 %! rgb = hsv2rgb (randi ([0 255], 10, 10, 3, "uint8"));
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	176 %! assert (class (rgb), "double")
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	177 %! assert (size (rgb), [10 10 3])
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	178
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	179 %!test
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	180 %! rgb = hsv2rgb (randi ([0 65535], 10, 10, 3, "uint16"));
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	181 %! assert (class (rgb), "double")
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	182 %! assert (size (rgb), [10 10 3])
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	183
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	184 %!test
21443 acd6e203031d Alter BIST tests stop emitting warnings during runtests invocation. Rik <rik@octave.org> parents: 20852 diff changeset	185 %! rgb = hsv2rgb (randi ([-128 127], 10, 10, 3, "int8"));
20664 a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	186 %! assert (class (rgb), "double")
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	187 %! assert (size (rgb), [10 10 3])
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	188
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	189 %!test
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	190 %! hsv_double = reshape ([2/3 1/3 1 0 1 1 1 0, 1 1 1 1], [2 2 3]);
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	191 %! hsv_uint8 = reshape (uint8 ([170 85 255 0 255 255 255 0 255 255 255 255]),
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	192 %! [2 2 3]);
20665 67e6343cd29a Add support for colorspace conversion of signed integers images (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20664 diff changeset	193 %! hsv_int16 = int16 (double (hsv_double * uint16 (65535)) -32768);
20664 a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	194 %! expected = reshape ([0 0 1 1 0 1 0 1 1 0 0 1], [2 2 3]);
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	195 %!
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	196 %! assert (hsv2rgb (hsv_double), expected)
a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	197 %! assert (hsv2rgb (hsv_uint8), expected)
20665 67e6343cd29a Add support for colorspace conversion of signed integers images (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20664 diff changeset	198 %! assert (hsv2rgb (hsv_int16), expected)
20664 a278de349250 Add more tests for color space conversion functions (patch #8709) Carnë Draug <carandraug@octave.org> parents: 20663 diff changeset	199 %! assert (hsv2rgb (single (hsv_double)), single (expected), eps (single (2)))

Mercurial > octave

annotate scripts/image/hsv2rgb.m @ 21562:6c2fd62db1f7