Talk:Trichromacy
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It seems as though there should be a single article on 'chromacy' or something like that, and that trichromat, tetrachromat, and dichromat should be stubs linking to it.
- Color vision. However, that article would get quite unwieldly if everything from the five -chromat articles were shoved into it. On my "to do once my DSL is back" list is refactoring this series of articles. IceKarmaॐ 17:04, 2005 Jun 6 (UTC)
- I agree with IceKarma. Besides, the word "chromacy" barely exists whereas trichromacy etc are in common use - so we'd end up with an unhealthy mass of redirects. seglea 23:29, 6 Jun 2005 (UTC)
The definition "A trichromat is an organism for which the perceptual effect of any arbitrarily chosen light from its visible spectrum can be matched by a mixture of no more than three different pure spectral lights" is patently incorrect.
If that were in fact the case, an RGB color space would be capable of representing all colors humans can perceive -- and this is well-known to be impossible. "Trichromat" refers to the fact that we have three different color receptors, not to the (incorrect) belief that our entire range of color vision can be duplicated with three primaries. The reason for the mismatch is that there is significant overlap in the sensitivities of our color receptors, so that for example the "green" primary color we use in imaging also significantly stimulates the red color receptor. To represent all colors using exactly three wavelengths of light, you would have to find three wavelengths which stimulate one and only one kind of color receptor -- and, at least in human color vision, they don't exist. Egomaniac 06:58, 7 July 2006 (UTC)
- I've gone back added a factual accuracy warning regarding this issue.Egomaniac 17:45, 13 September 2006 (UTC)
[edit] Opening sentence
What does that really mean? It doesn't seem to make much sense to a layman like me. And all the -chromat articles use a copy of it. 205.157.110.11 02:14, 9 August 2006 (UTC)
[edit] Merge
Could this article merge from Trichromatic color vision? They seem to cover the same topic from different perspectives. --Quiddity 03:57, 31 August 2006 (UTC)
- Yes, they should be. Both are too short, anyway. Mr. Toad 01:41, 4 May 2007 (UTC)
I concur. Anyone up for it? Dicklyon 00:06, 26 June 2007 (UTC)
