Blackman         2939 magick/accelerate-private.h   float Blackman(const float x)
Blackman         2977 magick/accelerate-private.h       return Blackman(x);
Blackman          835 magick/resize.c     { Blackman,  1.0, 1.0, 0.0, 0.0, BlackmanWeightingFunction }, /* Blackman, 2*cosine window   */