Antialiasing_SRD v2.0


 
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Contributor: Perceval Schopp
A really nice and cheap way to make anti-aliasing. (based on matrix and idistort) SRD for 'Sobel / Rotated / iDistort' V2 better deals with low contrast !
Requirements:
14.0, 13.2, 13.1, 13.0 or later
Linux, Mac, Windows
26 Jun 2024
65

While doing researches around stylisation and kuwahara filter. I found a really nice and cheap way to make anti-aliasing.

I make a sort of a sobel filter from the image but rotated :

on green channel :

2  1  0
1  0 -1
0 -1 -2

on red channel :

 0  1  2
-1  0  1
-2 -1  0

By doing so I detect the 'stairs' patterns on the image. It worked better on colors between 0 and 1 so I added a bit of tweak if you are in aces with crazy values...

Then I simply apply a sublte idistort one way and a second one with same intensity the reversed way.

I hope it helps you create awesome images !

Have fun with it :)

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