> clipka wrote:
>> Am 15.04.2010 11:07, schrieb Ray Gardener:
>>
>>> The problem turned out to be the color model. In RGB, it's hard or
>>> perhaps intractable; in CIE it's easy because the color units are more
>>> directly mapped to actual radiation wavelengths which the
>>> scattering/absorption equations prefer, and tonemapping to handle eye
>>> dark/light adaptation is easy too.
>>
>> Is that "CIE" as in "CIE RGB", "CIE XYZ", or "CIE L*a*b*"?
> 	You forgot "CIE L*u*v*". OTOH, what is "CIE RGB"?

I also forgot "CIE xyY" and "CIE UVW" ;-)

CIE RGB is a wide-gamut RGB color space defined in 1931 based on 
spectral colors, with R=700nm, G=546.1nm, B=435.8nm (the latter two are 
mercury vapor spectral lines) and whitepoint E. At least that's what 
Wikipedia claims.

Post a reply to this message