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How many times have you rolled your eyes at those “zoom… enhance… zoom in closer… I SAID ENHANCE!” scenes on television shows? Well, Google is
via PetaPixel: https://petapixel.com/2017/02/08/enhance-google-uses-ai-rebuild-portrait-8×8-pixel-image/
First, the program is given an 8 x 8 pixel image, which it “maps” to a similar higher resolution sample to produce a workable outline of the portrait or scene. Then, a second network adds resolution to that image