A Recursive Gaussian Weighted Filter For Impulse Noise Removal

[JohnnyMalaria]

I was rummaging around for an algorithm to remove impulse noise from an image (totally unrelated to video) and came across a paper that describes the subject of this post. I was really astonished at the capability of this method that requires no preprocessing parameter optimization etc. Here is a before and after - yes, the left is before and the right is after filtering (the original image - the famous Lena - had 90% noise added):



(Compression noise has been added due to the original pdf creation and my grabbing part of it)

The paper is available here (check out the other example images, too):

http://www.icgst.com/gvip/Volume6/Issue3/P1150636003.pdf

I thought this might be of interest to the Avisynth coders etc.

[themaster1]

Dang, this is crazy to get this result!

This is black and white though imagine with the 2 chroma channels with the cross-talk and everything ...probably not the same result but i'm with you still, someone work on an implementation.

[Soopafresh]

You should post this on the doom9 avisynth development board. Maybe one of the guys will want to take a stab at it.

[mazinz]

that is just amazing

[JohnnyMalaria]

You should post this on the doom9 avisynth development board. Maybe one of the guys will want to take a stab at it.

Done

[poisondeathray]

Holy cow Batman!