Depixeling Pixel Art(research.microsoft.com)
research.microsoft.com
Depixeling Pixel Art
http://research.microsoft.com/en-us/um/people/kopf/pixelart/index.html
1 comments
This was discussed earlier on http://news.ycombinator.com/item?id=2578706
sorry, site:news.ycombinator.com search didn't turn up any results - very hard to check for dups.
Actually this thread was still very useful to me despite the dupe because virtually all the links in the original thread are dead.