Visible to Intel only — GUID: GUID-AFB6574F-5922-4F67-B979-5C548673A81C
Visible to Intel only — GUID: GUID-AFB6574F-5922-4F67-B979-5C548673A81C
YCbCrToBGR_709CSC
Converts a YCbCr image to the BGR image for ITU-R BT.709 CSC signal.
Syntax
IppStatus ippiYCbCrToBGR_709CSC_8u_P3C3R(const Ipp8u* pSrc[3], int srcStep, Ipp8u* pDst, int dstStep, IppiSize roiSize);
IppStatus ippiYCbCrToBGR_709CSC_8u_P3C4R(const Ipp8u* pSrc[3], int srcStep, Ipp8u* pDst, int dstStep, IppiSize roiSize, Ipp8u aval);
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 |
An array of pointers to ROI in separate planes of the source image. |
srcStep |
An array of distances in bytes between starts of consecutive lines in the source image planes. |
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 fourth channel. |
Description
This function operates with ROI (see Regions of Interest in Intel IPP).
This function converts a planar Y'Cb'Cr' image pSrc to the three- or four-channel gamma-corrected B'G'R' image pDst for digital component video signals complied with the ITU-R BT.709 Recommendation [ITU709] for computer systems consideration (CSC). The conversion is performed according to the following formulas [Jack01]:
R' = 1.164*(Y' - 16) + 1.793*(Cr' - 128)
G' = 1.164*(Y' - 16) - 0.534*(Cr' - 128) - 0.213*(Cb' - 128)
B' = 1.164*(Y' - 16) + 2.115*(Cb' - 128)
The output R'G'B' values are saturated to the range [0..255].
The fourth channel is created by setting channel values to the constant value aval.
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. |