Convert BGR to grayscale (JPEG)
FwStatus | fwiBGRToY_JPEG_8u_C3C1R | ( | const Fw8u * pSrcBGR, int srcStep, Fw8u * pDstY, int dstStep, FwiSize roiSize ); |
dstStep | Destination buffer step size (width of the buffer in bytes). | |
pDstY | Pointer to destination image ROI for grayscale image format. | |
pSrcBGR | Pointer to source image ROI for BGR image format. | |
roiSize | Specifies the height and width of an ROI. | |
srcStep | Source buffer step size (width of the buffer in bytes). |
This function steps through an ROI in a source buffer, converts the source data from BGR to grayscale luminance values, and writes the converted data to a destination buffer.
The following formula is used to convert blue, green, and red values to luminance values.
Y = 0.114*B + 0.587*G + 0.299*R