Hi Gerhard,
thank you for that clarification.
I'm sure you know the German saying: "Wer viel misst misst Mist!" ;-)
And I get the feeling I'm one of them
Marry christmas
Andreas
Von: argyllcms-bounce@xxxxxxxxxxxxx <argyllcms-bounce@xxxxxxxxxxxxx> Im
Auftrag von Gerhard Fuernkranz
Gesendet: Mittwoch, 23. Dezember 2020 12:42
An: argyllcms@xxxxxxxxxxxxx
Betreff: [argyllcms] Re: Correction matrix backlight dependent?
Am 22.12.20 um 22:29 schrieb Andreas Mock:
When I want to use the colorimeter together with a correction matrix to
create a profile on a not hardware calibratable monitor to hit a specified
target (e.g. sRGB, 6500K, 120 ca/m²), is it necessary/better/optimal to
create the correction matrix with the intended backlight level of the
target? In this example turning backlight to a level more or less hitting
120 ca/m² and the creating the correction matrix?
If the set of all spectra that can be emitted by the display cannot be
decomposed into a linear combination of only three basis spectra, then a 3x3
correction matrix cannot be exact either, but only an approximation.
In this case it can indeed make sense to optimize the correction matrix for
the desired operating state of the display, and for a (sub)set of colors
which you want to get displayed as accurate as possible (the latter is
determined by the set of patches used to create the correction matrix).
As long as the colorimeter's filters resemble the standard observer closely,
I'd not expect too much difference. For a non-colorimetric RGB color sensor,
the difference could be more significant, though.
Regards,
Gerhard
