EdgeMorphology   3726 magick/morphology.c     case EdgeMorphology:
EdgeMorphology   3841 magick/morphology.c           case EdgeMorphology:        /* dilate and erode difference */
EdgeMorphology   3969 magick/morphology.c         case EdgeMorphology:
EdgeMorphology   1312 magick/option.c     { "Edge", (ssize_t) EdgeMorphology, MagickFalse },