cc [ flag... ] file... –lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageColorYCC2RGB_Fp(mlib_image *dst, const mlib_image *src);
The mlib_ImageColorYCC2RGB_Fp() function performs a color space conversion from ITU-R Rec.601 Y'CbCr to computer R'G'B'.
The source and destination images must be three-channel images.
It uses the following equation:
|R'| |cmat[0] cmat[1] cmat[2]| |Y'| |offset[0]| |G'| = |cmat[3] cmat[4] cmat[5]| * |Cb| + |offset[1]| |B'| |cmat[6] cmat[7] cmat[8]| |Cr| |offset[2]|
where
cmat[] = { 298.082/256, 0.000/256, 408.583/256, 298.082/256, -100.291/256, -208.120/256, 298.082/256, 516.411/256, 0.000/256 }; offset[] = { -222.922, 135.575, -276.836 }; src[x][y] = { Y', Cb, Cr }; dst[x][y] = { R', G', B' };
The function takes the following arguments:
Pointer to destination image.
Pointer to source image.
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.
See attributes(5) for descriptions of the following attributes:
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mlib_ImageColorConvert2(3MLIB), mlib_ImageColorConvert2_Fp(3MLIB), mlib_ImageColorRGB2XYZ(3MLIB), mlib_ImageColorRGB2XYZ_Fp(3MLIB), mlib_ImageColorRGB2YCC(3MLIB), mlib_ImageColorRGB2YCC_Fp(3MLIB), mlib_ImageColorYCC2RGB(3MLIB), attributes(5)