icvCvt_CMYK2Gray_8u_C4C1R  468 modules/imgcodecs/src/grfmt_jpeg.cpp                         icvCvt_CMYK2Gray_8u_C4C1R( buffer[0], 0, data, 0, cvSize(m_width,1) );
icvCvt_CMYK2Gray_8u_C4C1R  105 modules/imgcodecs/src/utils.hpp void icvCvt_CMYK2Gray_8u_C4C1R( const uchar* ycck, int ycck_step,