[fitsbits] Question(s) regarding development of proprietary FITS manipulation software. . .
Mark Calabretta
mcalabre at atnf.CSIRO.AU
Thu Sep 20 20:38:52 EDT 2007
On Thu 2007/09/20 14:05:17 +1000, Mark Calabretta wrote
in a message to: Maren Purves <m.purves at jach.hawaii.edu>
and copied to: gberz3 <gberz3 at gmail.com>, fitsbits at donar.cv.nrao.edu
>after all they should contain all of the colour information. Just
>multiply the spectra by the CIE 1931 colour-matching functions to
>get colourimetric RGB or XYZ-tristimulus values. These would then
...that is, multiply the spectrum in turn by each of the CIE 1931
R, G, B (or X, Y, Z) colour-matching functions and integrate to get
an (R,G,B) or (X,Y,Z) triple for each spectrum. This is the spectrum's
colour in a colourimetric colour-space. Do this for each pixel to get
a colourimetrically accurate colour image. Convert each triple to sRGB
via a simple linear transformation (matrix multiply) for display on an
LCD.
Cheers, Mark
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