Hi!
It seems that I do not understand some detail of the colour profile
handling in Darktable correctly. Probably, someone could give me a
helping hand here.
I use a standard Gnome desktop environment on a Debian Wheezy box (Gnome
3.4 on the upcoming Debian 7).
I used displaycalgui together with a ColorHug to calibrate and profile
the display in question and got a nice icc profile, call it /A.icc/ for
further reference. I placed this one in ~/.color/icc and added symbolic
links:
$ ln -s $HOME/.color/.icc $HOME/.config/darktable/color/in
$ ln -s $HOME/.color/.icc $HOME/.config/darktable/color/out
to have it available in dt as well. I checked, and all profiles are
recognized by dt properly, as I can see in the drop down boxes in question.
Finally, I loaded the icc-profile from Gnome colour manager and added it
as default for my monitor. To my understanding all colour aware
applications should now use this profile for rendering whatever input to
my monitor.
All looks pretty well till here.
Now I open Darktable with it's default settings. (Empty library.db etc.)
If I understand it correctly, it should now ask colord for the profile
to use and use it for the display itself, right?
So, if this is correct, I wonder why the colour rendering changes
significantly if I expicitly switch /output color profile/ to /A.icc/
instead of /system display profile/ (which is set to be A.icc as well
via gnome colour manager and subsequently colord).
IMHO this should give the same result as /system display profile/. But
actually what I get on screen seems to be sRGB regardless of what I set
for system colour profile.
Could someone clarify my misunderstanding here?
TIA!
--
Kind regards, / War is Peace.
| Freedom is Slavery.
Alexander Wagner | Ignorance is Strength.
|
| Theory : G. Orwell, "1984"
/ In practice: USA, since 2001
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