Talk:Metamerism (color)

message: Can someone define the loci of metamers on a chromaticity diagram or otherwise define metamers mathematically?--Adoniscik (talk) 02:27, 16 December 2007 (UTC)
thread_title: Mathematical definition

message: Article says:
This doesn't seem right on a number of grounds. Given a certain red, green and blue, you cannot match all tristimulus values. And if you try anyway, you won't get anywhere by adjusting the lights "to have equal brightness"...the whole point is that their brightnesses are individually adjusted. Can someone correct this if indeed it's wrong, or explain it better if it's right? Thanks! --Steve (talk) 20:45, 16 July 2008 (UTC)
replies: text: Yes, the equal brightness bit is bogus.  The point is that depending on whether the stimulus to be matched is inside or outside the color triangle, you might need to add some primary to the stimulus to match some other mixture of primaries.  Try to say that...  Dicklyon (talk) 21:40, 16 July 2008 (UTC)
thread_title:  Fishy / incorrect sentence? 

message: This article fails to identify common instances of Metamerism found in gemstones, yet consists of a complicated explanation that seem to be cribbed from a textbook. Fred Talk 14:48, 6 September 2008 (UTC)
thread_title: Too much and too little

message: I was hoping to see some mention of (metameric) camouflage, such as the story of certain WWII camouflage techniques which were totally foiled by simply wearing colour-tinted glasses. (Observer metameric failure?) Although I can't for the life of me remember where I heard the story. Also, is Mountbatten Pink some kind of metamer? I'm no expert, of course. nagualdesign (talk) 18:40, 30 November 2010 (UTC)
replies: text: Interesting anecdotes! I hope someone finds a source (book or article) about that, I can't so far.... Any information we find on this should also get added to the article Theory of camouflage. --Steve (talk) 21:24, 30 November 2010 (UTC)
thread_title:  Camouflage 

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message: The lens in a human eye probably refracts high-wavelength light less than low-wavelength light (see for example ).
Assume two white colours look the same by metamerism but one of them consists of monochromatic blue and monochromatic 560nm light, and the other one consists of a broad spectrum. 
Does a greyscale image which uses the broad-spectrum white look less sharp than an image which uses the other white? 
Hybrid Dog (talk) 16:00, 17 September 2023 (UTC)
thread_title: Sharpness differences between monochromatic and polychromatic light