YCbCrToRGB

Converts an YCbCr image to the RGB color model.

Syntax

IppStatus ippiYCbCrToRGB_JPEG_8u_P3R(const Ipp8u* pSrc[3], int srcStep, Ipp8u* pDst[3], int dstStep, IppiSize roiSize);

IppStatus ippiYCbCrToRGB_JPEG_8u_P3C3R(const Ipp8u* pSrc[3], int srcStep, Ipp8u* pDst, int dstStep, IppiSize roiSize);

IppStatus ippiYCbCrToRGB_JPEG_8u_P3C4R(const Ipp8u* pSrc[3], int srcStep, Ipp8u* pDst, int dstStep, IppiSize roiSize, Ipp8u aval);

pSrc	Array of pointers to ROI in each plane of the source image.
srcStep	Distance in bytes between starts of consecutive lines in planes of the source image.
pDst	Array of pointers to ROI in each plane of the planar destination image. Pointer to the destination image ROI for pixel-order image.
dstStep	Distance in bytes between starts of consecutive lines in the destination image.
roiSize	Size of the source and destination ROI in pixels.
aval	Constant value to create the fourth channel.

The function ippiYCbCrToRGB_JPEG is declared in the ippj.h file. It operates with ROI (see Regions of Interest in Intel IPP).

This function converts an YCbCr image to the RGB image according to the following formulas:

R = Y + 1.402*Cr - 179.456

G = Y - 0.34414*Cb - 0.71414*Cr + 135.45984

B = Y + 1.772*Cb - 226.816

ippStsNoErr	Indicates no error.
ippStsNullPtrErr	Indicates an error condition if any of the specified pointers is NULL.
ippStsSizeErr	Indicates an error condition if roiSize has a field with zero or negative value.
ippStsStepErr	Indicates an error condition if srcStep or dstStep has a zero or negative value.