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It doesn’t help that RGB is very badly tuned for many skin tones.
by TylerE 2y ago
It doesn’t help that RGB is very badly tuned for many skin tones.
- jsheard 2y agoDo these models really operate in RGB space? I would have thought that using a perceptual color space to generate images meant to be perceived by humans would be low hanging fruit.
- TylerE 2y agoAt the very least they ultimately output to RGB. The fleshtone part of the spectrum is quite small.
- smokel 2y agoAs a total cluebie on generative art, I would assume that the neural networks involved use linear weights and ReLU only. If the training data and the output are in RGB pixels, then it would be reasonable to suppose that this introduces some bias. It may not be enough to use a perceptual color space only. The gradients in skin tones, or any other complex texture, are non-linear due to lighting and curvature. Is there someone in the room who does know how things work, and whether this hypothesis is wrong or not?