DitherVirtualPixelMethod  657 Magick++/lib/Magick++/Include.h   using MagickCore::DitherVirtualPixelMethod;
DitherVirtualPixelMethod 2772 magick/cache.c             case DitherVirtualPixelMethod:
DitherVirtualPixelMethod 1622 magick/option.c     { "Dither", DitherVirtualPixelMethod, UndefinedOptionFlag, MagickFalse },
DitherVirtualPixelMethod  400 magick/resample.c     case DitherVirtualPixelMethod:
DitherVirtualPixelMethod  447 magick/resample.c       case DitherVirtualPixelMethod: