Convert from XYZ to RGB
MT, SSE2, Family10h
| FwStatus | fwiXYZToRGB_8u_C3R | ( | const Fw8u * pSrc, int srcStep, Fw8u * pDst, int dstStep, FwiSize roiSize ); | |
| FwStatus | fwiXYZToRGB_8u_AC4R | ( | const Fw8u * pSrc, int srcStep, Fw8u * pDst, int dstStep, FwiSize roiSize ); | |
| FwStatus | fwiXYZToRGB_16u_C3R | ( | const Fw16u * pSrc, int srcStep, Fw16u * pDst, int dstStep, FwiSize roiSize ); | |
| FwStatus | fwiXYZToRGB_16u_AC4R | ( | const Fw16u * pSrc, int srcStep, Fw16u * pDst, int dstStep, FwiSize roiSize ); | |
| FwStatus | fwiXYZToRGB_16s_C3R | ( | const Fw16s * pSrc, int srcStep, Fw16s * pDst, int dstStep, FwiSize roiSize ); | |
| FwStatus | fwiXYZToRGB_16s_AC4R | ( | const Fw16s * pSrc, int srcStep, Fw16s * pDst, int dstStep, FwiSize roiSize ); | |
| FwStatus | fwiXYZToRGB_32f_C3R | ( | const Fw32f * pSrc, int srcStep, Fw32f * pDst, int dstStep, FwiSize roiSize ); | |
| FwStatus | fwiXYZToRGB_32f_AC4R | ( | const Fw32f * pSrc, int srcStep, Fw32f * pDst, int dstStep, FwiSize roiSize ); |
| dstStep | Destination buffer step size (width of the buffer in bytes). | |
| pDst | Pointer to a location in a destination buffer. | |
| pSrc | Pointer to a location in a source buffer. | |
| roiSize | Specifies the height and width of an ROI. | |
| srcStep | Source buffer step size (width of the buffer in bytes). |
These functions step through an ROI in a source buffer, convert the source data from the XYZ color space to the RGB color model, and write the converted data to a destination buffer.
A CIE XYZ image (pSrc) declared in the ROI is converted to a gamma-corrected RGB image (pDst).
The following formulas are used:
R = 3.240479*R - 1.537150*G - 0.498535*B G = -0.969256*R + 1.875991*G + 0.041556*B B = 0.055648*R - 0.204043*G + 1.057311*B The formulas assume that R, G, and B values are normalized to [0 to 1] for integer data types. For floating point data types, the data must already be in the range [0 to 1]. For integer data types, the converted image data is saturated to [0 to 1] and scaled to the data type range. For floating point data type, data is saturated to [0 to 1].