Image Dithering Techniques
The cluster centers on discussions of dithering algorithms and their application in image processing to simulate more colors and reduce banding in limited palettes, including references to Floyd-Steinberg, Atkinson, and ordered dithering.
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Some dithering would help there...
Note, they have dithering, and they likely went for the best one possible.
By using dithering. You can see it quite clearly on the guy's face if you zoom in.
Was expecting some dithering algorithms from the post title.
This sounds just like dithering.https://en.wikipedia.org/wiki/Dither
Dithering divides your effective resolution. If you show anything that requires resolution and good color, the artifacts are visible.
I wonder, why don't they use dithering - http://www.ivank.net/blogspot/dithering/dithering.html
Some dithering would probably improve things too
But it looks horrible, there's a lot of dithering.
Might be relevant to your interests:https://nigeltao.github.io/blog/2022/gamma-aware-ordered-dit...