beautiful image processing software - denoising, inpainting, resizing

[b0b0b0b]

http://www.greyc.ensicaen.fr/~dtschump/greycstoration/demonstration.html

It would be excruciatingly slow to run on a movie, but the results are beautiful.

Be sure to check out the subtitle-removal example

[Sirber]

makes it look like painting...

[Wilbert]

It would be excruciatingly slow to run on a movie, but the results are beautiful.
It blurs a bit too much :)

[mg262]

I rather like some of the demonstration pictures. (Certainly not all... though I admire the author for presenting it warts and all, unlike most academic video work.) Plus the methods are made available. Unfortunately I doubt it will be possible to get even a 1 FPS filtering method out of it...

Does anyone else find that it sometimes exhibits the impressionistic effect associated with warpsharp? (An effect which in my view is a problem with most filters which try to enhance edges.)

[foxyshadis]

I like it, though it has rather wavelet-like issues. The end effect looks extremely similar to strong fft3dfilter + high radius smart smoother (which also leaves a painting effect), with a smidge of linetracing. For noise reduction it's obviously not that useful compared to what we have now. But the inpainting looks extremely promising, if properly applied it could be the best subtitle/logo remover yet seen on this board, if you really had the extra time. :p

For resizing it's not bad, but there are better and faster, if vastly more expensive, applications for that out there. Though EEDI2 is the only one in the avisynth world.

However slow it is, judicious coding could probably speed it way up. Darn download link is 404 though. [Oh, found it on sourceforge.]

[DigitAl56K]

I saw this on Digg. I'd be shocked if it worked properly on motion video rather than stills. My bet is that it'll turn anything you throw at it into an Enya-like vid.

[foxyshadis]

I found some more information looking for totally unrelated, I found more information on this. This page (http://www-sop.inria.fr/odyssee/research/tschumperle-deriche:02d/appliu/) has all the demos, as well as links to the thesis and defenses. (The "vector-valued directed shock filter term" looks interesting.) Additionally, SAR (http://www.general-cathexis.com/) has an implementation called "Tschumperle" Regularization & Inpainting so you don't have to futz around with CImg. As well as many amazing resizing tricks, like "backprojection", the best (and slowest) of which don't get that oil painting look.

Since the source is available and I'm trying to find something really useful to write now that I finally have vs2k5, I'll try turning it into a better subtitle remover. If nothing else, perhaps Didée will appreciate its pitiful speed. :D