ConvertRGBToYPbPr  171 magick/colorspace.c   ConvertRGBToYPbPr(red,green,blue,Y,Cb,Cr);
ConvertRGBToYPbPr  527 magick/colorspace.c               ConvertRGBToYPbPr(red,green,blue,&X,&Y,&Z);
ConvertRGBToYPbPr  218 tests/validate.c   ConvertRGBToYPbPr(red,green,blue,Y,Cb,Cr);
ConvertRGBToYPbPr  800 tests/validate.c   ConvertRGBToYPbPr(0.545877*QuantumRange,0.966567*QuantumRange,