[argyllcms] Re: Spec2CIE bug? Spectral values like 6.2125e+005, Lab values like 85.10/887.75/-759.54
- From: Graeme Gill <graeme@xxxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Wed, 15 Jun 2011 18:13:13 +1000
Alexey Gribunin wrote:
But in Spec2CIE v.1.3.3 something definitely works different, because
Spec2CIE v.1.3.2 works fine with the same measurements and with the same
script.
I'm sure it's different, but that doesn't mean that the behaviour is
actually wrong. A pathological illuminant spectrum will always be able
to show this behaviour, because it's inherent in the nature of
fluorescence.
The visual equivalent is viewing something that is fluorescent in the dark,
while it is being illuminated with pure U.V. It will glow brightly, and it's
apparent "reflectance" will be a factor of some 100's up to infinity.
Yes, I understand it. We discussed it some time ago.
Colorimetrically it's little bit wrong but visually it gives very good
results.
Hopefully the altered D50_0.0.sp solves your problem then.
Graeme Gill.
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