GrayChannel      2795 magick/fx.c      status=FxEvaluateChannelExpression(fx_info,GrayChannel,0,0,alpha,exception);
GrayChannel      2810 magick/fx.c      status=FxEvaluateChannelExpression(fx_info,GrayChannel,0,0,alpha,exception);
GrayChannel      2917 magick/fx.c      fx_image=FxImageChannel(image,GrayChannel,expression,exception);
GrayChannel       484 magick/identify.c             channel_statistics[GrayChannel].depth);
GrayChannel       526 magick/identify.c           (void) PrintChannelStatistics(file,GrayChannel,"Gray",1.0/scale,
GrayChannel       570 magick/identify.c           (void) PrintChannelFeatures(file,GrayChannel,"Gray",channel_features);
GrayChannel       127 magick/option.c     { "Gray", (ssize_t) GrayChannel, MagickFalse },
GrayChannel      1110 wand/compare.c                     QuantumRange*channel_distortion[GrayChannel],
GrayChannel      1111 wand/compare.c                     channel_distortion[GrayChannel]);
GrayChannel      1162 wand/compare.c                     channel_distortion[GrayChannel]);