RiemersmaDitherMethod  972 magick/option.c     { "Riemersma", RiemersmaDitherMethod, UndefinedOptionFlag, MagickFalse },
RiemersmaDitherMethod 1882 magick/quantize.c   if (cube_info->quantize_info->dither_method != RiemersmaDitherMethod)
RiemersmaDitherMethod 2238 magick/quantize.c   quantize_info->dither_method=RiemersmaDitherMethod;