Quote:>would appear if I had the filter in my hand. How can I map a calculated
>spectrum to RGB or some other color coordinate system so that I can "see"
>what a particular spectrum looks like?
Try this, firstly you could use the CIE system's standard colorimetric
observer, colour matching functions to calculate CIE XYZ tri stimulus
values, the colour matching functions are basically the spectral sens-
itivities of the human eye's three colour receptors - the retina's cones.
You can then do a matrix conversion from CIE XYZ to the RGB colour
space of your display, there are various ways of doing this, either see
the colour spaces FAQ or email me for the equations.
This should give you quite a good visual approximation of the filters
colours within the limitations of the gamut of your display and the
accuracy of the transformations used. (The more accurate XYZ -> RGB
transformations are more difficult).
Imaging Technology Research Group. University of Wesminster.