one possible place to start looking for an emulation would be fft3dfilter's sharpen mode (which at negative values greater than -1 will give a good lowpass), and a lot of masktoolage. just this line gives a "saliency-esque" look... fft3dfilter(bw=128,bh=128,ow=64,oh=64,bt=1,sigma=0.,sharpen=1,smin=0,smax=100,scutoff=1/128.,wintype=0) i'll have to play with masks and whatnot to get some of that NPR happening.