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@ Tony Vladusich
2025-03-06 21:55:27
nostr:nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqknzsux7p6lzwzdedp3m8c3c92z0swzc0xyy5glvse58txj5e9ztqaufa4k
It's a trap, John!
The demonstration below does not use the same sRGB coordinates as Perano, but close enough to make the point that, properly speaking, "colour" (correctly spelled with a "u" 🤣) is most definitely a perceptual construct, not a physical one.
It is, of course, a cartoon version of the famous "dress" phenomenon, depicting how it is possible to perceive the same sRGB triplet as a cloth material that is either blue or white, depending on the surrounding context (source: https://www.wikidata.org/wiki/Q19362881).
There is no harm in disregarding the distinction ... until there is: which is to say that folks who construct theories of "colour perception" have generally been hopelessly seduced by the conflation of physics and perception.
I've written extensively about the problem and how we might collectively avoid such traps. But the trap is absurdly seductive!
https://media.mathstodon.xyz/media_attachments/files/114/117/671/288/145/477/original/4514240712be2eb5.png