HardMix           643 magick/composite.c   composite->red=gamma*HardMix(p->red*Sa,q->red*Da);
HardMix           644 magick/composite.c   composite->green=gamma*HardMix(p->green*Sa,q->green*Da);
HardMix           645 magick/composite.c   composite->blue=gamma*HardMix(p->blue*Sa,q->blue*Da);
HardMix           647 magick/composite.c     composite->index=gamma*HardMix(p->index*Sa,q->index*Da);