RemoveDupsLayer   480 Magick++/lib/Magick++/Include.h   using MagickCore::RemoveDupsLayer;
RemoveDupsLayer  1188 magick/option.c     { "RemoveDups", RemoveDupsLayer, UndefinedOptionFlag, MagickFalse },
RemoveDupsLayer  7936 wand/mogrify.c               case RemoveDupsLayer: