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From TFA, “the quality gain is clear to see”, and then they show a picture where pixels have been upsized into weird painterly blotches, with essentially the sa
by jacobolus 10y ago
From TFA, “the quality gain is clear to see”, and then they show a picture where pixels have been upsized into weird painterly blotches, with essentially the same level of detail as the original.
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_interpolation.htm http://www.americaswonderlands.com/digital_photo_interpolati...
- walrus01 10y agoThe blotches in the example on the right resemble what happens when you run an ordinary raster image through some freely available raster-to-vector image processing tools.
- Animats 10y agoReminds me of Jaggies Are Gone, a old Macintosh application which did this sort of thing by dumber means. 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. [1] http://waifu2x.udp.jp/ http://waifu2x.udp.jp/
- tornadoboy55 10y agoDidn't those guys enlarge images by using some sort of mandelbrot-based process?