CMI

function cmi(clip v)
{
v=v.greyscale().converttoyv12()
y=v.gaussresize(320,240).converttoyv12()
y.invert()
cm(1,0,false)
invert()
a=last
y.cm(1,0,false)
b=last
merge(a,b)
gaussresize(72,48,p=4)
gaussresize(width(v),height(v))
mergeluma(v)
}