[argyllcms] Re: Monitor screen color unevenness/irregularity

  • From: Graeme Gill <graeme@xxxxxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Tue, 17 Apr 2012 09:57:32 +1000

János, Tóth F. wrote:
> These are CCT and Y measurements on a NEC PA231W with the uniformity
> compensation set to 0 and 5 (off, max):
> img802.imageshack.us/img802/7595/pa231whomogeneitycomp.jpg
> But you obviously loose a lot from the contrast ratio of you use this feature.


It's hard to tell how non-uniform it is because CCT and Y are both highly 
non-linear measures. Is the contrast ratio really visually degraded by a black 
the middle that's something like 0.04% higher ?

Graeme Gill.

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