Visible to Intel only — GUID: GUID-18D2D010-B747-4A6A-B361-F67D1403A2C7
Visible to Intel only — GUID: GUID-18D2D010-B747-4A6A-B361-F67D1403A2C7
RGBToCbYCr422, RGBToCbYCr422Gamma
Convert 24-bit per pixel RGB image to 16-bit per pixel CbYCr image.
Syntax
IppStatus ippiRGBToCbYCr422_8u_C3C2R(const Ipp8u* pSrc, int srcStep, Ipp8u* pDst, int dstStep, IppiSize roiSize);
IppStatus ippiRGBToCbYCr422Gamma_8u_C3C2R(const Ipp8u* pSrc, int srcStep, Ipp8u* pDst, int dstStep, IppiSize roiSize);
Include Files
ippcc.h
Domain Dependencies
Headers: ippcore.h, ippvm.h, ipps.h, ippi.h
Libraries: ippcore.lib, ippvm.lib, ipps.lib, ippi.lib
Parameters
pSrc |
Pointer to the source image ROI. |
srcStep |
Distance in bytes between starts of consecutive lines in the source 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. |
Description
These functions operate with ROI (see Regions of Interest in Intel IPP).
The function ippiRGBToCbYCr422 converts the gamma-corrected R'G'B' image pSrc to the Cb'Y'Cr' image pDst according to the same formulas as the function ippiRGBToYCbCr does.
The function ippiRGBToCbYCr422Gamma performs gamma-correction of the source RGB image pSrc according to the same formula as the function ippiGammaFwd does, and then converts it to the Cb'Y'Cr' image pDst according to the same formulas as the function ippiRGBToYCbCr does.
The functions ippiRGBToCbYCr422 and ippiRGBToCbYCr422Gamma use 4:2:2 sampling format for the converted image.
A CbYCr image has the following sequence of bytes: Cb0Y0Cr0Y1, Cb1Y2Cr1Y3, ....
Return Values
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 has a field with a zero or negative value. |