RobidouxFilter    599 Magick++/lib/Magick++/Include.h   using MagickCore::RobidouxFilter;
RobidouxFilter   1107 magick/option.c     { "Robidoux", RobidouxFilter, UndefinedOptionFlag, MagickFalse },
RobidouxFilter   1269 magick/resample.c     resample_filter->filter = RobidouxFilter;
RobidouxFilter    793 magick/resize.c     { RobidouxFilter,      BoxFilter      },  /* Cubic Keys tuned for EWA     */