RobertsKernel     696 Magick++/lib/Magick++/Include.h   using MagickCore::RobertsKernel;
RobertsKernel     975 magick/morphology.c     case RobertsKernel:
RobertsKernel    1375 magick/morphology.c     case RobertsKernel:
RobertsKernel    1207 magick/option.c     { "Roberts", RobertsKernel, UndefinedOptionFlag, MagickFalse },