ShepardsColorInterpolate  626 Magick++/lib/Magick++/Include.h   using MagickCore::ShepardsColorInterpolate;
ShepardsColorInterpolate 3133 magick/distort.c           case ShepardsColorInterpolate:
ShepardsColorInterpolate 1525 magick/option.c     { "Shepards", ShepardsColorInterpolate, UndefinedOptionFlag, MagickFalse },