TopHatMorphology 3722 magick/morphology.c     case TopHatMorphology:
TopHatMorphology 3800 magick/morphology.c           case TopHatMorphology:     /* open and image difference */
TopHatMorphology 3960 magick/morphology.c         case TopHatMorphology:
TopHatMorphology 1313 magick/option.c     { "TopHat", (ssize_t) TopHatMorphology, MagickFalse },