MitchellFilter    100 Magick++/demo/zoom.cpp               filter=MitchellFilter;
MitchellFilter    254 Magick++/lib/Magick++/Include.h   using MagickLib::MitchellFilter;
MitchellFilter   1005 TclMagick/generic/TclMagick.c         CubicFilter,     CatromFilter,  MitchellFilter, LanczosFilter,  BesselFilter,
MitchellFilter    674 magick/enum_strings.c     filter=MitchellFilter;
MitchellFilter   1294 magick/enum_strings.c     case MitchellFilter:
MitchellFilter   1311 magick/resize.c       i=(long) MitchellFilter;