Thanks - I think I got the point:
I. Ivanov schrieb am 09.01.2017 um 22:24:
The calibration would affect all colors on the monitor - not only the
windows within DT. And this is normal.
In your case the returned answer is "HDMI1 the X atom and colord
returned the same profile " - this is good.
Because I had negative experience in the past (laptop with attached
monitor) I restrict DT to use "colord" only.
The setting in DT is to apply monitor profile - you should be fine
with this. It simply says that whatever is selected as a system
profile will be used. In some cases however you may want to select
specific profile. Such case would be when colord and X atom do not
match for example (assuming the system is using one profile with x
atom but the colord profile is different - what you want to use). In
your case however they match so you should be ok.
thanks
And yes - the articles the other pointed to are very good - depending
how much you want to read about color management....
I ALWAYS want to learn things, but the source should be in a form I can
understand ... which this article seems to be.
Tomas Sobek schrieb am 09.01.2017 um 22:19:
I found Elle's article good for the general understanding of the
concepts. Based on your use case you can do both calibration and
profiling, or just one of them:
http://ninedegreesbelow.com/photography/monitor-profile-calibrate-confuse.html
Thanks for this link!!!
On 2017-01-09 12:45 PM, Matthieu Moy wrote:
----- Original Message -----
Hi,
I calibrated my monitor(s) some time ago and was happy with this. But
recently I helped a friend of mine to calibrate - both on Linux and
Windows - and got some doubts on my understanding of this.
When I set up a monitor profile and activate it in gnome color manager
(> settings > color in my LinuxMint 17.3 Cinnamon desktop) I see all of
my desktop "change color", including the frames of the windows etc.
This led me to the assumption that color correction of the monitor
works
globally - application independent.
On the other hand I find settings in e. g. darktable to apply a monitor
profile.
calibrating your monitor affects both the hardware (the global effect
you are seeing) and the software. You need both to get accurate colors.
The hardware (calibration per se) part consists in configuring the
graphics card's LUT to get a good approximation of colors. The second
part is profiling your screen and the result is used by color-managed
software. If I understood correctly, the profile tells the software
both how to render each color and which color cannot be rendered
(used to know which pixel is out of gamut on screen).
Thanks for this short and crystal clear explanation :-)
If you use dispcal (https://displaycal.net/), then both steps are
explicitly shown in the UI.
I wondered about that already.
What's both nice and confusing is that both informations are stored
in the same file (.icc).
--
regards
Bernhard
http://www.bilddateien.de
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