YCbCrToRGB

Convert from YCbCr to RGB

Supported Technologies

MT, SSE2, Family10h

Synopsis

FwStatus	fwiYCbCrToRGB_8u_C3R	(	const Fw8u * pSrc, int srcStep, Fw8u * pDst, int dstStep, FwiSize roiSize );
FwStatus	fwiYCbCrToRGB_8u_AC4R	(	const Fw8u * pSrc, int srcStep, Fw8u * pDst, int dstStep, FwiSize roiSize );
FwStatus	fwiYCbCrToRGB_8u_P3R	(	*const Fw8u const** pSrc[3], int srcStep, *Fw8u const** pDst[3], int dstStep, FwiSize roiSize );
FwStatus	fwiYCbCrToRGB_8u_P3C3R	(	*const Fw8u const** pSrc[3], int srcStep, Fw8u * pDst, int dstStep, FwiSize roiSize );

Parameters

dstStep		Destination buffer step size (width of the buffer in bytes).
pDst		Pointer to a location in a destination buffer.
pDst[3]		Pointer to a location in a three-channel planar destination buffer (array values point to a location in each plane).
pSrc		Pointer to a location in a source buffer.
pSrc[3]		Pointer to a location in a three-channel planar source buffer (array values point to a location in each plane).
roiSize		Specifies the height and width of an ROI.
srcStep		Source buffer step size (width of the buffer in bytes).

Description

These functions step through an ROI in a source buffer, convert the source data from the YCbCr color space to the RGB model, and write the converted data to a destination buffer.

A YUV image (pSrc) declared in the ROI (roiSize) is converted to a gamma-corrected RGB image (pDst).

The following conversion formulas are used:

 R = 1.164*(Y-16) + 1.596*(Cr-128)
 G = 1.164*(Y-16) - 0.392*(Cb-128) - 0.813*(Cr-128)
 B = 1.164*(Y-16) + 2.017*(Cb-128)