WhiteThresholdImageChannel 1318 magick/methods.h #define WhiteThresholdImageChannel PrependMagickMethod(WhiteThresholdImageChannel) WhiteThresholdImageChannel 1954 magick/threshold.c status=WhiteThresholdImageChannel(image,DefaultChannels,threshold, WhiteThresholdImageChannel 54 magick/threshold.h WhiteThresholdImageChannel(Image *,const ChannelType,const char *, WhiteThresholdImageChannel 3166 wand/mogrify.c (void) WhiteThresholdImageChannel(*image,channel,argv[i+1],