mediaLib Library Functions mlib_ImageColorRGB2YCC_Fp(3MLIB)
NAME
mlib_ImageColorRGB2YCC_Fp - RGB to YCC color conversion
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include
mlib_status mlib_ImageColorRGB2YCC_Fp(mlib_image *dst,
const mlib_image *src);
DESCRIPTION
The mlib_ImageColorRGB2YCC_Fp() 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.
SunOS 5.11 Last change: 2 Mar 2007 1
mediaLib Library Functions mlib_ImageColorRGB2YCC_Fp(3MLIB)
ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Interface Stability | Committed ||_____________________________|_____________________________|
| MT-Level | MT-Safe |
|_____________________________|_____________________________|
SEE ALSO
mlib_ImageColorConvert2(3MLIB),
mlib_ImageColorConvert2_Fp(3MLIB),
mlib_ImageColorRGB2YCC(3MLIB),
mlib_ImageColorXYZ2RGB(3MLIB),
mlib_ImageColorXYZ2RGB_Fp(3MLIB),
mlib_ImageColorYCC2RGB(3MLIB),
mlib_ImageColorYCC2RGB_Fp(3MLIB), attributes(5)
SunOS 5.11 Last change: 2 Mar 2007 2