[argyllcms] Re: Contributed ccmx files
- From: Konstantin Pyanzin <kokap@xxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Wed, 27 Oct 2010 22:29:21 +0400
Wed, 27 Oct 2010 19:35:16 +0200 Dariusz ?urawski wrote:
> Hello!
> > Yes, that is true. My ccmx matrix and the matrix from the list for
> > "Spyder3 + HP LP2475w" combination are different. Completely different.
> What instrument did you use to create your own matrix? Did you validated
> accuracy of your Spyder/matrix combo with this instrument? If so, what dE
> values did you achieved?
I used a Spyder3Elite colorimeter and an i1Pro as the reference
spectroradiometer.
I compared created profiles only.
For example, Green stimulus in each profile:
i1Pro: x=0.2279, y=0.6863
Spyder3Elite without correction: x=0.1987, y=0.6556
Spyder3Elite with my correction matrix: x=0.2270, y=0.6899
Spyder3Elite with correction matrix from the list of contributed ccmx files:
x=0.2540, y=0.6872
> > P.S. BTW my Spyder3 works fine in Quato iColor Display when setting "Wide
> > Gamut S-IPS (generic)" colorimeter correction option. (I compared it with
> > i1Pro.)
> Interesting. What was the results of validation? I assume that you've
> calibrated and profiled your monitor with iColor/Spyder and then validated
> this calibration/profiling using i1Pro. Maybe you're lucky and your Spyder3
> have small reading variations from generic (mean) values, but I'm afraid
> it's not the case for most Spyders.
> --
> Best regards,
> Darek
I calibrated and profiled with the Spyder3Elite without correction, then with
the Spyder3Elite with "generic" correction and then with the i1Pro.
Then I compared profiles in GamutVision.
For Green stimulus:
i1Pro: x=0.2252, y=0.6895
Spyder3Elite without correction: x=0.1954, y=0.6585
Spyder3Elite with "generic" correction: x=0.2173, y=0.6888
It isn't a great result, but it is better than nothing.
Best regards,
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