Discussion:
Subject: spotread -i --- stuck in illumination D50 (Chromatic Adaptation)
Graeme Gill
2014-10-13 06:08:03 UTC
Permalink
When I try to make a spotread (ver. 1.7.0 Linux) measurement with a
simulated illumination D65 (option -i D65) the result line still print
D50. Are there other people encounter this problem or do I have a local
system error???
You are confusing two different things. When you select D65 illuminant
for a reading from a spectrometer, then that is what will be used
in the spectral to XYZ conversion. The display shows XYZ and the
equivalent (ICC like) D50 L*a*b* as a convenience. It doesn't
attempt to track the selected illuminant.

Graeme Gill.

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