waifu2x

https://github.com/nagadomi/waifu2x

Image Super-Resolution for anime/fan-art using Deep Convolutional Neural Networks.
Demo-Application can be found at http://waifu2x.udp.jp/ .

Why the fuck wasn't this posted here, you fucking redditor weebs?

It's a magical 2D art scaler/denoiser. Someone should give it one of those 320x420 dakimakura samples and post the results.

give it one of those 320x420 dakimakura samples and post the results

Original:
http://s22.postimg.org/nl2f8otvz/kyou_dakimakurasmalluncensored1.jpg
http://s22.postimg.org/f1j1axljj/kyou_dakimakurasmalluncensored.jpg

Upscale:
http://s12.postimg.org/xjpruxpfv/kyou_dakimakura1.png
http://s12.postimg.org/94hjtvqiz/kyou_dakimakura2.png

Pretty good.