John Francis wrote:
I think you should do a little more research.
Metamerism is a general term to describe the way that
different colours appear to a sensor (usually the eye)
when viewed under different lighting conditions.
Thats better. Thats how I interpret the term. Your initial post
implied something different.
As such it applies equally well to the spectral-to-
single-sample contractive mapping (and isomorphisms
under that mapping) as it does to anything else.
Something tells me there's a different term for that, but I digress. I
understand what you're saying, that is, two light sources that create
the same RGB mapping in one sensor (say K25 film) may map to two
different RGB mappings in another sensor (say a CCD). My point is that
you know what the absorptive mapping of the one sensor is, at least for
certain illumination conditions (sunlight), possibly for a continous
spectrum illumination source. You can mimic the mapping to your RGB
values before they get combined pretty closely. At least I think its
alot better than trying to do it post combination, where you cannot get
at the individual R, G, and B values.
