[argyllcms] Custom illumination
- From: Klaus Kompatscher <kkompatscher@xxxxxxxx>
- To: <argyllcms@xxxxxxxxxxxxx>
- Date: Tue, 19 Jan 2010 17:08:42 +0100
Dear All
Did try to create profile for custom illumination:
- Measured light with I1 with special diffuser; Got measurements in cxf
format (file attached)
- Made a profile with Profile Maker White point looks good
- Copied spectral values to ref. D50_1.5.sp file and renamed DalTile...
(file attached)
- made a profile ./colprof -v -i
/Applications/Argyll_V1.1.0/ref/DalTileLichtI1.sp -kp 0 .3 1 1 .8 -r 2 -L
100 -l 280 G60_G07_5c
White point calculated by Argyll is fare off from the real.
Visually it does not correspond at all.
PM white point: Lab 87 0 2
Argyll white point: Lab 88 5 30
I also tried to interpolate the spectral values to get 5 nm steps from 370
to 730 but did not change anything.
Why this big difference?
What means Spectral_Norm in the Spectral illumination file?
Thanks for any help
Klaus Kompatscher
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