Steve

2012-08-27 01:03:29 UTC

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I posted this to sci.color, but got no real response. Perhaps someone hereRaw Message

could help me.

I am trying to figure out the algorithm to compute the color rendering index

from a spectrum (spaced 5nm intervals). I have the CIE 13.3-1995 publication,

but it is not clear what one is to do. I can compute X,Y,Z from the spectrum,

along with the X,Y,Z from the test samples (using Table 1 and Table 2 in the

publication), but I don't understand the notation that is used in Equations 5-3

through 5-6.

The publication comes with a CD with the CRI calculation program CIE13_3D.EXE.

If anyone knows where I could obtain the source code to the program, it would

answer most of my questions.

Any help would be greatly appreciated.

Thanks in advance.

Steve