mlib_ImageColorYCC2RGB(3MLmediaLib Library Functimlib_ImageColorYCC2RGB(3MLIB)NAMEmlib_ImageColorYCC2RGB - YCC to RGB color conversion
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_ImageColorYCC2RGB(mlib_image *dst, const mlib_image *src);
DESCRIPTION
The mlib_ImageColorYCC2RGB() 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' };
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 ALSOmlib_ImageColorConvert2(3MLIB), mlib_ImageColorConvert2_Fp(3MLIB),
mlib_ImageColorRGB2XYZ(3MLIB), mlib_ImageColorRGB2XYZ_Fp(3MLIB),
mlib_ImageColorRGB2YCC(3MLIB), mlib_ImageColorRGB2YCC_Fp(3MLIB),
mlib_ImageColorYCC2RGB_Fp(3MLIB), attributes(5)SunOS 5.10 2 Mar 2007 mlib_ImageColorYCC2RGB(3MLIB)