[argyllcms] Re: dispcal VDT DE 2K measurement discrepancy

  • From: Graeme Gill <graeme@xxxxxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Sat, 20 Dec 2014 14:28:09 +1100

Vallo Kallaste wrote:

> reproducibility? I mean that when near lab-grade instrument is able to give
> reproducibility in ± 20 K range then my assumptions about consumer grade
> instruments are plainly wrong. 

Color temperature in degrees K is notoriously non-linear. So there
is no proportionality between a change in degrees K and the visual effect.

A more linear measure is Mired: <http://en.wikipedia.org/wiki/Mired>

Graeme Gill.

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