GetGrayPixelComponent  486 magick/fourier.c           source[i]=QuantumScale*GetGrayPixelComponent(p);
GetGrayPixelComponent  911 magick/fourier.c           magnitude_source[i]=QuantumScale*GetGrayPixelComponent(p);
GetGrayPixelComponent  960 magick/fourier.c           phase_source[i]=QuantumScale*GetGrayPixelComponent(p);