SigmaImpulse     2659 magick/accelerate-private.h OPENCL_DEFINE(SigmaImpulse,  (attenuate*0.1f))
SigmaImpulse     2844 magick/accelerate-private.h       if (alpha < (SigmaImpulse/2.0f))
SigmaImpulse     2847 magick/accelerate-private.h         if (alpha >= (1.0f-(SigmaImpulse/2.0f)))
SigmaImpulse     1532 magick/gem.c         if (alpha < (SigmaImpulse/2.0))
SigmaImpulse     1535 magick/gem.c           if (alpha >= (1.0-(SigmaImpulse/2.0)))