Depixelating Japanese adult films
There really is a piece of technology for everything these days ExtremeTech (surprizingly the link is SFW).
I wasn't sure if I should post this or not, but I find it interesting technology. I wonder if you could use it to fill in a face when they blur it in a news broadcast? I have a couple of video enhancers from the days when you would copy VHS but these were simple video amplifiers, so if there was noise on the video signal, that got "enhanced" too! I guess technology has come on in the 25+ years I've had them; haven't used them for 20!.
Here's another story from the same site, which is sort of related: Depixelizing Pixel Art: Upscaling Retro 8-bit Games.