Contrast         1727 magick/accelerate-private.h   __kernel void Contrast(__global CLPixelType *im, const unsigned int sharpen)
Contrast          976 magick/enhance.c         Contrast(sign,&image->colormap[i].red,&image->colormap[i].green,
Contrast         1021 magick/enhance.c       Contrast(sign,&red,&green,&blue);