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Tetrachromacy and how it relates to computer graphics
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NiHaoMike:
Computer graphics uses 3 primary colors based on the assumption that human eyes have 3 types of cone cells. For the most part, that's true. But a (relatively) recent finding discovered that up to 12% have 4 types.
https://www.extremetech.com/extreme/331169-human-tetrachromacy-is-real-heres-what-we-know
With decades of computer graphics being based on 3 primary colors, it's obvious that it's not likely to expand to 4 anytime soon. For those who have 4 types of cone cells, do they see pictures on a computer screen significantly less colorful than the real world? If computer displays had 4 primary colors, would the majority with 3 cone cells see any difference in the colors?
SiliconWizard:
Dang, was octarine a real thing after all? :-DD
I wanted a rude username:
This claim of 6% of the population (0% of men, 12% of women ... it's sex-linked and requires heterozygosity) refers to what I'd call "weak" tetrachromacy, not the experience of the painter profiled in this article. Weak tetrachromats' vision is pretty much like normal trichromats'.

However, almost everyone could benefit from an extension of the colour space, as computer displays only render a subset of what people with normal vision can see. This is especially noticeable with deep violet hues, which I would guess even most dichromats would perceive. Note that this doesn't necessarily require a four-dimensional colour space.
Whales:

--- Quote from: I wanted a rude username on February 26, 2023, 04:59:37 am ---This is especially noticeable with deep violet hues

--- End quote ---

My newest monitor does goofy stuff in the purples, see the attached photo vs screenshot.  sRGB preset chosen and annoying stuff turned off.  It's much more obvious in real life than the camera photo suggests.
TimFox:
Purple and violet are different colors that look similar.
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