You may well have seen sci-fi movies or television shows where the protagonist asks to zoom in on an image and enhance the results – revealing a face, or a number plate, or any other key detail – and Google’s newest artificial intelligence engines, based on what’s known as diffusion models, are able to pull off this very trick.
It’s a difficult process to master, because essentially what’s happening is that picture details are being added that the camera didn’t originally capture,…
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