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That lossy compression "escapes" the Shannon entropy limit doesn't seem like an accurate way of putting it. Lossy compression throws information away, so there
by domador 4y ago
That lossy compression "escapes" the Shannon entropy limit doesn't seem like an accurate way of putting it. Lossy compression throws information away, so there is less information to compress. The entropy limit is still in place.
I agree with the overall point, though, that movie files aren't "zipped" up, but are compressed using lossy compression (with few exceptions).
- kidme5 4y agoLossy compression is something Shannon specifically addressed with Rate Distortion Theory https://en.wikipedia.org/wiki/Rate%E2%80%93distortion_theory https://en.wikipedia.org/wiki/Rate%E2%80%93distortion_theory