TroughFactor      886 magick/decorate.c       q->red=ClampToQuantum(QuantumScale*((MagickRealType) q->red*TroughFactor+
TroughFactor      887 magick/decorate.c         (MagickRealType) background*(QuantumRange-TroughFactor)));
TroughFactor      889 magick/decorate.c         TroughFactor+(MagickRealType) background*(QuantumRange-TroughFactor)));
TroughFactor      891 magick/decorate.c         TroughFactor+(MagickRealType) background*(QuantumRange-TroughFactor)));