behrmann (Kai-Uwe Behrmann)
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User Since
Nov 30 2016, 4:10 PM (132 w, 6 d)
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Visions and coding hands on Color Management
Oyranos Blog | Home Page

Recent Activity

Jan 25 2018

behrmann committed R536:7297075b559d: be more precise about error handling oyConversion_Correct() (authored by behrmann).
be more precise about error handling oyConversion_Correct()
Jan 25 2018, 9:04 PM
behrmann committed R536:1798b81d87d9: fix policy registration name (authored by behrmann).
fix policy registration name
Jan 25 2018, 9:04 PM
behrmann committed R536:e6f4d52782af: improve kded debug section (authored by behrmann).
improve kded debug section
Jan 25 2018, 7:09 PM
behrmann committed R536:2ee669dfdca9: describe debug methods (authored by behrmann).
describe debug methods
Jan 25 2018, 1:23 PM

Jan 20 2018

behrmann added a comment to D9909: Set raw EDID data for Wayland OutputDevices.

with gamma and other values simply missing, but we don't use those anywhere at this point

Jan 20 2018, 9:31 PM · KWin

Jan 17 2018

behrmann added a comment to D9909: Set raw EDID data for Wayland OutputDevices.

@dvratil It will help other users as well. Some existing tools can adapt to Wayland, with the EDID information.

Jan 17 2018, 10:32 AM · KWin

Dec 19 2017

behrmann added a comment to D8763: Monitor profile should use relative colorimetric rendering intent by default.

Here is the ICC profile:

Set it as the monitor profile in a properly color-managed program such as RawTherapee or GIMP, then go through a few photos viewing them using the relative colorimetric rendering intent (which is what Gwenview should use by default) and the perceptual intent (which is what Gwenview currently uses).

Dec 19 2017, 11:50 PM
behrmann added a comment to D8763: Monitor profile should use relative colorimetric rendering intent by default.
  1. It is unreasonable to force an intent which alters the appearance of the whole image in an image viewer. In-gamut colors should not suffer in an image viewer due to the monitor being unable to display a few out-of-gamut colors.
Dec 19 2017, 11:38 PM
behrmann added a comment to D8763: Monitor profile should use relative colorimetric rendering intent by default.

@rkflx Oh, I missed your ping. Sorry for the late reply.

Dec 19 2017, 2:19 PM

Dec 4 2017

behrmann committed R536:55f9bc59c772: remove icon files (authored by behrmann).
remove icon files
Dec 4 2017, 12:34 PM
behrmann committed R536:5805ec1a64e9: let config stage not fail if KF5 is not detected (authored by behrmann).
let config stage not fail if KF5 is not detected
Dec 4 2017, 12:34 PM
behrmann committed R536:ea0ae875a521: DocTools is optional (authored by behrmann).
DocTools is optional
Dec 4 2017, 11:27 AM

May 29 2017

behrmann added a comment to D5928: Introducing Night Color - KWin's native blue light filter at nighttime.
In D5928#112398, @subdiff wrote:
In D5928#112368, @cfeck wrote:

First, the difference between "color management" and "color correction" is that color correction is only one step in the color management workflow. KWin would need (again) be able to apply color correction to take part in the color management workflow. As such, the terms color correction and color management can be used interchangeably in the context of KWin discussion.

Gamma correction (as implemented by the hardware LUTs) cannot be used for color correction, because it lacks the cross-component modifications computed by the 3x3 matrix or the 3D LUT.

The term "gamma correction" has been used since decades in the context of video cards, even if they are not only used to apply gamma correction, but also brigthness/contrast adjustments, color inversion effects, and temperature adjustments.

Thanks for the explanation in your own words, but there has to be some misunderstanding. I wanted to see a quote from a second source besides you ...

May 29 2017, 8:09 AM · Plasma on Wayland, KWin

Apr 8 2017

behrmann committed R536:b06eb1dda27a: improve the german strings - Farbmanagement is the common term (authored by behrmann).
improve the german strings - Farbmanagement is the common term
Apr 8 2017, 7:40 PM
behrmann committed R536:c1298ddf6a04: reduce the docbook links (authored by behrmann).
reduce the docbook links
Apr 8 2017, 7:40 PM
behrmann committed R536:6353f9370e60: Merge ssh://git.kde.org/kolor-manager (authored by behrmann).
Merge ssh://git.kde.org/kolor-manager
Apr 8 2017, 7:40 PM
behrmann committed R536:36b3a7bdd4a8: Farbmanagement is the typical german term for Color Management (authored by behrmann).
Farbmanagement is the typical german term for Color Management
Apr 8 2017, 7:40 PM

Apr 7 2017

behrmann committed R536:540843bc23d5: generate internal documentation from oyranos-policy (authored by behrmann).
generate internal documentation from oyranos-policy
Apr 7 2017, 12:09 PM
behrmann committed R536:fdfad78d79d1: show only help button in kcm_kmsettings (authored by behrmann).
show only help button in kcm_kmsettings
Apr 7 2017, 12:09 PM
behrmann committed R536:d8b680ce03cb: add X-DocPath=kcontrol/kcm_kmsettings/index.html (authored by behrmann).
add X-DocPath=kcontrol/kcm_kmsettings/index.html
Apr 7 2017, 12:09 PM
behrmann committed R536:8ffd979fc4a4: make KCM GUI name better distinguishable (authored by behrmann).
make KCM GUI name better distinguishable
Apr 7 2017, 12:09 PM
behrmann committed R536:3c0f0f8b1ad3: add KF5 DocTools dependency (authored by behrmann).
add KF5 DocTools dependency
Apr 7 2017, 12:09 PM

Apr 5 2017

behrmann committed R536:3959b1197374: fix About dialog windows (authored by behrmann).
fix About dialog windows
Apr 5 2017, 10:06 AM

Feb 12 2017

behrmann committed R536:f643920545eb: bump version to 1.1.1 (authored by behrmann).
bump version to 1.1.1
Feb 12 2017, 3:52 PM