EdgeMorphology   3907 magick/morphology.c     case EdgeMorphology:
EdgeMorphology   4062 magick/morphology.c           case EdgeMorphology:        /* dilate and erode difference */
EdgeMorphology   4187 magick/morphology.c         case EdgeMorphology:
EdgeMorphology   1366 magick/option.c     { "Edge", EdgeMorphology, UndefinedOptionFlag, MagickFalse },