mlib_ImageColorRGB2CIEMono_Fp - RGB to monochrome conversion
cc [ flag... ] file... –lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageColorRGB2CIEMono_Fp(mlib_image *dst, const mlib_image *src);
The mlib_ImageColorRGB2CIEMono_Fp() function performs a conversion from a red/green/blue to a monochromatic image. The source image must be a three-channel image. The destination image must be a single-channel image.
It uses the following equation:
dst[x][y][0] = 0.2125*src[x][y][0] + 0.7154*src[x][y][1] + 0.0721*src[x][y][2]
The function takes the following arguments:
Pointer to destination image.
Pointer to source image.
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.
See attributes(5) for descriptions of the following attributes:
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mlib_ImageColorRGB2CIEMono(3MLIB), mlib_ImageColorRGB2Mono(3MLIB), mlib_ImageColorRGB2Mono_Fp(3MLIB), attributes(5)