[argyllcms] Re: A question about viewing gamma (dispcal)

  • From: Kai-Uwe Behrmann <ku.b@xxxxxx>
  • To: ArgyllCMS <argyllcms@xxxxxxxxxxxxx>
  • Date: Mon, 1 Nov 2010 08:00:02 +0100 (MET)

Date: Sun, 31 Oct 2010 22:59:16 +0100
From: Gerhard Fuernkranz <nospam456@xxxxxx>
Subject: [argyllcms] Re: A question about viewing gamma (dispcal)

Am 30.10.2010 20:29, schrieb Anders Torger:

...it is hard to know how much the viewing conditions can differ from the 
recommended before it has significant impact.

Depends. The appearance can be indeed significantly different in some
viewing environments - for instance images projected in a dark room,
versus the same images displayed on a monitor in a normal office
environment or printed on a reflective medium. Or another example,
bright outdoors scenes appear to have higher contrast and more saturated
colors than a colorimetric reproduction of the same scene on a monitor
(the latter rather looks dull).

But does'nt this mean a per image correction, while most CM apps are rather static? I guess that a proper workflow would be to honour the scene information, using EXIF informations or similiar sources, and select the appropriate ICC profile or even blend between two ICC renderings. A dia show can the contain night images, which look more gray, and sun light images with the mentioned high contrast and saturation, without manually switching the ICC profile. VC is currently not supported by any Linux app I am aware of. The perceptual intent trick appears just as a start to me.

kind regards
Kai-Uwe Behrmann
developing for colour management www.behrmann.name + www.oyranos.org

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