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Is this used in image compression? JPEG, because of the Fourier transform, tends to have waves around edges of flat-colored surfaces. We might have much better
by laurent92 5y ago
Is this used in image compression? JPEG, because of the Fourier transform, tends to have waves around edges of flat-colored surfaces. We might have much better compression if we encode images with disordered rows, then leave it up to the decoder to swap them.
- alanbernstein 5y agoNo... the ripples you're thinking of are compression artifacts. They aren't present inside large flat-colored areas. Breaking up those flat areas increases detail/entropy/information, from the perspective of a perceptual encoder. So there would be MORE ripples.