r2:
new parameter linear, linearity of sharpening amplification for each plane
default = False
r1 amplifies the sharpening/blurring difference linearly, and just looks dumb to me, the cheesy algorithm tends to over sharpen/blur stuff like.. whatever
with linear = False, sharpening/blurring gets much smarter, it only filters where actually needs filtering with variable strength.
set linear=True if you wanna linear amplification.
non-linear amplification algorithm (shamelessly) copied from
http://forum.doom9.org/showthread.ph...17#post1547017