YCbCr422ToBGR

Converts a YCbCr image with 4:2:2 sampling to the BGR image.

Syntax

Case 1: Operation on pixel-order data

IppStatus ippiYCbCr422ToBGR_8u_C2C3R(const Ipp8u* pSrc, int srcStep, Ipp8u* pDst, int dstStep, IppiSize roiSize);

IppStatus ippiYCbCr422ToBGR_8u_C2C4R(const Ipp8u* pSrc, int srcStep, Ipp8u* pDst, int dstStep, IppiSize roiSize, Ipp8u aval);

Case 2: Conversion from planar to pixel-order data

IppStatus ippiYCbCr422ToBGR_8u_P3C3R(const Ipp8u* pSrc[3], int srcStep[3], Ipp8u* pDst, int dstStep, IppiSize roiSize);

pSrc	Pointer to the source image ROI. An array of pointers to the ROI in each separate plane of the source planar image.
srcStep	Distance in bytes between starts of consecutive lines in the source image. An array of such distances in bytes for each plane of the source planar image.
pDst	Pointer to the destination image ROI.
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 ippiYCbCr422ToBGR is declared in the ippcc.h file. It operates with ROI (see Regions of Interest in Intel IPP).

This function converts the Y'Cb'Cr' image pSrc with 4:2:2 sampling (see Table “Pixel-Order Image Formats” and Table “Planar Image Formats” for more details) to the gamma-corrected B'G'R' image pDst according to the same formulas as the function ippiYCbCrToRGB does.

The output B'G'R' values are saturated to the range [0..255].

The fourth channel is created by setting channel values to the constant value aval.

ippStsNoErr	Indicates no error. Any other value indicates an error or a warning.
ippStsNullPtrErr	Indicates an error condition if pSrc or pDst is NULL.
ippStsSizeErr	Indicates an error condition if roiSize.width is less than 2 or roiSize.height is less than 1.