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Facebook: the technology behind preview photos

This is a pretty cool level of pixelshaving: making a preview picture that looks like the time you broke your glasses in a party in 200 bytes, by mutilating the jpeg file headers:

Although I’m not sure if at this blurriness a gradient made from array of five-ten colors wouldn’t be almost as acceptable.


(As a quick experiment, a normal jpg with 1/10 our normal resolution would be 5k (vs 28k normal)

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