View Full Version : Denoise this jpg image with avisynth? Possible?


Yobbo
5th March 2007, 08:52
Hi, I have this really bad low-res image that I need to clean up & enlarge (maybe 2-3x)! I was about to dive into some painstaking, meticulous manual cleaning in Photoshop, when I thought to myself, hey maybe there's Avisynth filters that can help me out? But, I don't know where to begin!? Does anybody here have any advice?

I'm a bit timid with Avisynth, all I know is simple video post-processing, such as denoiser & sharpen. I'm not sure where to begin with a single image frame, and with "interference"-noise such as this. and trying to keep what little detail there already is??

Anyway, here is the image -

http://img46.imageshack.us/img46/7137/jiheitaihb1.jpg

pandy
5th March 2007, 12:31
Try use a free Image Analyzer.

http://meesoft.logicnet.dk/Analyzer/

You can resize image by fractal interpolator

http://meesoft.logicnet.dk/Analyzer/plugins/index.htm#FractInterpolation

Some of artefacts should be nicely removed by filtration in frequency domain.

try to experiment with various filters but dont expect miracle...