You could add any image to Raisr and it will make up more detail, you could let it loop over the same picture over and over and it will probably add infinite detail, or up to some fixed point.
What's cool is that for many pictures, it's good enough at making up detail that the result is credible.
This doesn’t seem to produce results which are obviously better than the state of the art from 20 years ago. (Or if so, this article certainly doesn’t demonstrate it.) So is the novelty supposed to be that it’s less computationally expensive?
Here’s a site I just found in a quick web search with some comparisons of other upscaling tools: http://www.americaswonderlands.com/digital_photo_interpolati...
There's an neural net system which upscales old low-resolution anime stills.[1] It's been trained on hand-drawn cartoons, so it restores line art detail. That's very similar to this Google thing.