BGRToYCoCg

Converts a 24-bit BGR image to the YCoCg color model.

Syntax

IppStatus ippiBGRToYCoCg_8u16s_C3P3R(const Ipp8u* pBGR, int bgrStep, Ipp16s* pYCC[3], int yccStep, IppiSize roiSize);

IppStatus ippiBGRToYCoCg_8u16s_C4P3R(const Ipp8u* pBGR, int bgrStep, Ipp16s* pYCC[3], int yccStep, IppiSize roiSize);

pBGR	Pointer to the source image ROI.
bgrStep	Distance in bytes between starts of consecutive lines in the source image.
pYCC	Array of pointers to the destination image ROI in each plane.
yccStep	Distance in bytes between starts of consecutive lines in the destination image.
roiSize	Size of the source and destination ROI in pixels.

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

This function converts the 24-bit BGR image pBGR to the YCoCg image pYCC according to the following formulas:

Y = ((R + 2*G + B)+ 2)/4

Co = ((R - B) + 1))/2

Cg = (( - R + 2*G - B) + 2)/4

ippStsNoErr	Indicates no error. Any other value indicates an error.
ippStsNullPtrErr	Indicates an error condition if one of the specified pointers is NULL.