Re:Make Patterns Pop Out of Heatmaps with Seriation (2018)
by laurent92 on Saturday July 03, 2021 @08:12AM
(#27721090)
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.
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Re:Make Patterns Pop Out of Heatmaps with Seriation (2018)
by alanbernstein on Saturday July 03, 2021 @08:37AM
(#27721214)
No... 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.