[argyllcms] Display calibration and gray balance

  • From: Fabrizio Levati <fabrizio.levati@xxxxxxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Wed, 21 Apr 2010 23:13:58 +0200

Recently I played with DispcalGUI to calibrate and profile a standard iMac 22" 
display for prepress with my Eye-One Pro.
Starting from the corresponding preset and with some slight change I have been 
able to obtain what appears to be very good result (see attached verify 
Not satisfied, I tried to verify the calibration/profile with a software tool 
that is specifically intended for such a prepress certification. The overall 
result is remarkable and the only test failed (not a surprise) was the gray 
Now I need your help (this list is full of experts and I am sadly not among 
them) to better understand the differences between the Dispcal verification 
method and the one resumed in the screenshot.

Is it really impossible to achieve better results in terms of "tone values" 
working only with the VCGT transfer curves?

Thanks to Graeme, Florian and all the guys patiently answering questions on 
this list.


Title: Profile Verification | iMac 2010-04-17 130cdm² D5000 min native 2.4 HQ XYZLUT | 2010-04-18 13:33:07

Profile Verification


Evaluation criteria:

Delta E formula for overview: CIE 1976 CIE 1994 CIE 2000

PNG image

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