ConvertRGBToLCHab  501 magick/colorspace.c               ConvertRGBToLCHab(red,green,blue,&X,&Y,&Z);
ConvertRGBToLCHab 3631 magick/enhance.c   ConvertRGBToLCHab(*red,*green,*blue,&luma,&chroma,&hue);
ConvertRGBToLCHab   71 magick/gem.h     ConvertRGBToLCHab(const Quantum,const Quantum,const Quantum,double *,double *,
ConvertRGBToLCHab  582 tests/validate.c   ConvertRGBToLCHab(0.545877*QuantumRange,0.966567*QuantumRange,