Convert from YCC to RGB
MT
| FwStatus | fwiYCCToRGB_8u_C3R | ( | const Fw8u * pSrc, int srcStep, Fw8u * pDst, int dstStep, FwiSize roiSize ); | |
| FwStatus | fwiYCCToRGB_8u_AC4R | ( | const Fw8u * pSrc, int srcStep, Fw8u * pDst, int dstStep, FwiSize roiSize ); | |
| FwStatus | fwiYCCToRGB_16u_C3R | ( | const Fw16u * pSrc, int srcStep, Fw16u * pDst, int dstStep, FwiSize roiSize ); | |
| FwStatus | fwiYCCToRGB_16u_AC4R | ( | const Fw16u * pSrc, int srcStep, Fw16u * pDst, int dstStep, FwiSize roiSize ); | |
| FwStatus | fwiYCCToRGB_16s_C3R | ( | const Fw16s * pSrc, int srcStep, Fw16s * pDst, int dstStep, FwiSize roiSize ); | |
| FwStatus | fwiYCCToRGB_16s_AC4R | ( | const Fw16s * pSrc, int srcStep, Fw16s * pDst, int dstStep, FwiSize roiSize ); | |
| FwStatus | fwiYCCToRGB_32f_C3R | ( | const Fw32f * pSrc, int srcStep, Fw32f * pDst, int dstStep, FwiSize roiSize ); | |
| FwStatus | fwiYCCToRGB_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 YCC color space to the RGB color model, and write the converted data to a destination buffer.
A Photo YCC image (pSrc) declared in the ROI is converted to a gamma-corrected RGB image (pDst) as follows.
Restore normal YCC data: Y = 1.3584 * Y C1 = 2.2179 * (C1 - 156/255) C2 = 1.8215 * (C2 - 137/255) The formulas assume that Y, C1, and C2 are normalized to [0 to 1]. For floating point data type, the input must already be in the range [0 to 1]. For integer data types, an internal conversion is performed, then the restored YCC data is transformed to RGB. The following conversion formulas are used: R = Y + C2 G = Y - 0.194*C1 - 0.509*C2 B = Y + C1 For integer destination data types, the result image data is scaled to the full range of the destination data type.