diff options
Diffstat (limited to 'utils/samples/roundtrip.c')
| -rw-r--r-- | utils/samples/roundtrip.c | 96 |
1 files changed, 59 insertions, 37 deletions
diff --git a/utils/samples/roundtrip.c b/utils/samples/roundtrip.c index 024a190..d957b60 100644 --- a/utils/samples/roundtrip.c +++ b/utils/samples/roundtrip.c @@ -1,15 +1,37 @@ +// +// Little cms +// Copyright (C) 1998-2011 Marti Maria +// +// Permission is hereby granted, free of charge, to any person obtaining +// a copy of this software and associated documentation files (the "Software"), +// to deal in the Software without restriction, including without limitation +// the rights to use, copy, modify, merge, publish, distribute, sublicense, +// and/or sell copies of the Software, and to permit persons to whom the Software +// is furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO +// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION #include "lcms2.h" +#include <math.h> + static -double VecDist(BYTE bin[3], BYTE bout[3]) +double VecDist(cmsUInt8Number bin[3], cmsUInt8Number bout[3]) { double rdist, gdist, bdist; - rdist = fabs(bout[0] - bin[0]); - gdist = fabs(bout[1] - bin[1]); - bdist = fabs(bout[2] - bin[2]); + rdist = fabs((double) bout[0] - bin[0]); + gdist = fabs((double) bout[1] - bin[1]); + bdist = fabs((double) bout[2] - bin[2]); return (sqrt((rdist*rdist + gdist*gdist + bdist*bdist))); } @@ -18,49 +40,49 @@ double VecDist(BYTE bin[3], BYTE bout[3]) int main(int argc, char* argv[]) { - int r, g, b; - BYTE RGB[3], RGB_OUT[3]; - cmsHTRANSFORM xform; - cmsHPROFILE hProfile; - double err, SumX=0, SumX2=0, Peak = 0, n = 0; + int r, g, b; + cmsUInt8Number RGB[3], RGB_OUT[3]; + cmsHTRANSFORM xform; + cmsHPROFILE hProfile; + double err, SumX=0, SumX2=0, Peak = 0, n = 0; - if (argc != 2) { - printf("roundtrip <icc profile>\n"); - return 1; - } + if (argc != 2) { + printf("roundtrip <RGB icc profile>\n"); + return 1; + } - hProfile = cmsOpenProfileFromFile(argv[1], "r"); - xform = cmsCreateTransform(hProfile,TYPE_RGB_8, hProfile, TYPE_RGB_8, INTENT_RELATIVE_COLORIMETRIC, cmsFLAGS_NOTPRECALC); + hProfile = cmsOpenProfileFromFile(argv[1], "r"); + xform = cmsCreateTransform(hProfile,TYPE_RGB_8, hProfile, TYPE_RGB_8, INTENT_RELATIVE_COLORIMETRIC, cmsFLAGS_NOOPTIMIZE); - for (r=0; r< 256; r++) { - printf("%d \r", r); - for (g=0; g < 256; g++) { - for (b=0; b < 256; b++) { + for (r=0; r< 256; r++) { + printf("%d \r", r); + for (g=0; g < 256; g++) { + for (b=0; b < 256; b++) { - RGB[0] = r; - RGB[1] = g; - RGB[2] = b; + RGB[0] = r; + RGB[1] = g; + RGB[2] = b; - cmsDoTransform(xform, RGB, RGB_OUT, 1); + cmsDoTransform(xform, RGB, RGB_OUT, 1); - err = VecDist(RGB, RGB_OUT); + err = VecDist(RGB, RGB_OUT); - SumX += err; + SumX += err; SumX2 += err * err; - n += 1.0; - if (err > Peak) - Peak = err; + n += 1.0; + if (err > Peak) + Peak = err; - } - } - } + } + } + } - printf("Average %g\n", SumX / n); - printf("Max %g\n", Peak); - printf("Std %g\n", sqrt((n*SumX2 - SumX * SumX) / (n*(n-1)))); - cmsCloseProfile(hProfile); - cmsDeleteTransform(xform); + printf("Average %g\n", SumX / n); + printf("Max %g\n", Peak); + printf("Std %g\n", sqrt((n*SumX2 - SumX * SumX) / (n*(n-1)))); + cmsCloseProfile(hProfile); + cmsDeleteTransform(xform); - return 0; + return 0; }
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