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I find the use of dithering fairly ingenious, even though the result looks like a printed newspaper. Essentially the goal for him was to achieve the best possi
by rahen 5y ago
I find the use of dithering fairly ingenious, even though the result looks like a printed newspaper.
Essentially the goal for him was to achieve the best possible energy efficiency (CPU, bandwidth) and he came up with this idea. I'm pretty sure WebP would be much more CPU intensive.
- mnw21cam 5y agoThe problem with dithering is that it is added noise (read: entropy) that needs to be preserved in the image file, which can make the compressed image file bigger. You can actually achieve quite good results by just cranking down the quality on a jpeg. You'd have to go really low quality before it looked as bad as these dithered images. Also, jpeg supports greyscale, although you might find that keeping the colour in there really doesn't add much to the file size at all anyway, especially if you set an appropriate chroma subsampling ratio.
- ReactiveJelly 5y agoJPEG looks subjectively better at the same bitrate and is probably hardware-decoded on many platforms. Unfortunately I lost the link for the comparison.