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mlib_ImageColorRGB2YCC(3MLIB) mediaLib Library Functions mlib_ImageColorRGB2YCC(3MLIB) NAME
mlib_ImageColorRGB2YCC - RGB to YCC color conversion SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageColorRGB2YCC(mlib_image *dst, const mlib_image *src); DESCRIPTION
The mlib_ImageColorRGB2YCC() function performs a color space conversion from computer R'G'B' to ITU-R Rec.601 Y'CbCr. The source and destination images must be three-channel images. It uses the following equation: |Y'| |cmat[0] cmat[1] cmat[2]| |R'| |offset[0]| |Cb| = |cmat[3] cmat[4] cmat[5]| * |G'| + |offset[1]| |Cr| |cmat[6] cmat[7] cmat[8]| |B'| |offset[2]| where cmat[] = { 65.738/256, 129.057/256, 25.064/256, -37.945/256, -74.494/256, 112.439/256, 112.439/256, -94.154/256, -18.285/256 }; offset[] = { 16, 128, 128 }; src[x][y] = { R', G', B' }; dst[x][y] = { Y', Cb, Cr }; PARAMETERS
The function takes the following arguments: dst Pointer to destination image. src Pointer to source image. RETURN VALUES
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Committed | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
mlib_ImageColorConvert2(3MLIB), mlib_ImageColorConvert2_Fp(3MLIB), mlib_ImageColorRGB2YCC_Fp(3MLIB), mlib_ImageColorXYZ2RGB(3MLIB), mlib_ImageColorXYZ2RGB_Fp(3MLIB), mlib_ImageColorYCC2RGB(3MLIB), mlib_ImageColorYCC2RGB_Fp(3MLIB), attributes(5) SunOS 5.11 2 Mar 2007 mlib_ImageColorRGB2YCC(3MLIB)
