[argyllcms] Brightness problem
- From: andrzej duda <desdaa@xxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Mon, 30 Nov 2009 02:53:41 +0100
I made a profile for CRT Eizo monitor using dispcalGUI.
This were results after setting monitor's controls :
Target Brightness = 100.00, Current = 100.14, error = 0.1%
Target 50% Level = 21.80, Current = 23.15, error = 1.4%
Target Near Black = 1.00, Current = 1.02, error = 0.0%
Target white = x 0.3128, y 0.3291, Current = x 0.3132, y 0.3291,
error = 0.32 DE
Target black = x 0.3128, y 0.3291, Current = x 0.3074, y 0.3258,
error = 2.72 DE
And after calibration:
dispcal -v -d1 -c1 -p0.615384615385,0.404,2.375 -H -qh -t6500 -b100 -
g2.2 -f0 -k1
Brightness error = -0.009215 cd/m^2
White point error = 0.225425 deltaE
Maximum neutral error (@ 0.110657) = 0.661718 deltaE
Average neutral error = 0.311683 deltaE
And after
colprof -v -qh -al
White point XYZ = 0.950611 0.999117 1.092147, Lab = 99.965834
-2.212721 -19.671204
Black point XYZ = 0.001351 0.001477 0.001739, Lab = 1.334208
-0.293677 -0.983488
Display Luminance = 100.278836
profile check complete, peak err = 2.571549, avg err = 0.588872
Nothing wrong with the numbers.
But after the profile was installed I've validated it with basICColor
display 4.1.17
and got only 71 cd/m2 instead of 100. This is rather huge difference.
Any idea why?
Regards
Andrzej Duda
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