imProcessSplitYChroma

Split a RGB image into luma and chroma. \n * Chroma is calculated as R-Y,G-Y,B-Y. Source image must be IM_RGB/IM_BYTE. \n * luma image is IM_GRAY/IM_BYTE and chroma is IM_RGB/IM_BYTE. \n * Source and target must have the same size. * * \verbatim im.ProcessSplitYChroma(src_image: imImage, y_image: imImage, chroma_image: imImage) [in Lua 5] \endverbatim * \verbatim im.ProcessSplitYChromaNew(src_image: imImage) -> y_image: imImage, chroma_image: imImage [in Lua 5] \endverbatim * \ingroup colorproc