What’s the digital process of lowering the quality of a photo or video? Also is the opposite process a thing or just movie things?

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What’s the digital process of lowering the quality of a photo or video? Also is the opposite process a thing or just movie things?

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Anonymous 0 Comments

Lossy compression.

The opposite is largely just a movie thing. Only in the last few years has machine learning-based image interpolation become a practical thing, but it’s just *interpolation*, basically an educated guess. It’s reasonably good at sharpening some contours on upscaled images or guessing a generic replacement for a missing part of an image from the surroundings, but it’s not some magic “enhance” that can bring back data lost in compression.

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