BlackThresholdImageChannel  603 Magick++/lib/Image.cpp   BlackThresholdImageChannel( image(), channel_, threshold_.c_str(),
BlackThresholdImageChannel  123 magick/methods.h #define BlackThresholdImageChannel  PrependMagickMethod(BlackThresholdImageChannel)
BlackThresholdImageChannel  574 magick/threshold.c   status=BlackThresholdImageChannel(image,DefaultChannels,threshold,
BlackThresholdImageChannel   40 magick/threshold.h   BlackThresholdImageChannel(Image *,const ChannelType,const char *,
BlackThresholdImageChannel  874 wand/mogrify.c             (void) BlackThresholdImageChannel(*image,channel,argv[i+1],