Converts from YUV with 4:2:0 sampling to BGR

Supported Technologies

MT, SSE2, Family10h


FwStatus   fwiYUV420ToBGR_8u_P3C3R ( const Fw8u * const pSrc[3]int srcStep[3]Fw8u * pDstint dstStepFwiSize roiSize );


dstStep   Destination buffer step size (width of the buffer in bytes).
pDst   Pointer to a location in a destination 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[3]   Source three-channel planar buffer step size (array values define width of each plane in bytes).


This function steps through an ROI in a source buffer, converts the source data from the YUV color space with 4:2:0 chroma subsampling to the BGR model, and writes the converted data to a destination buffer.

A YUV image with 4:2:0 chroma subsampling (pSrc) is converted to a gamma-corrected BGR image (pDst).

The following conversion formulas are used:

 R = Y + 1.140*V
 G = Y - 0.394*U - 0.581*V
 B = Y + 2.032*U