Comments on: GNOME Color Manager Progress

By: dielpThitledy

dielpThitledy — Tue, 24 Nov 2009 22:56:57 +0000

Lots of of folks blog about this topic but you wrote down some true words.

By: Milan Knizek

Milan Knizek — Mon, 16 Nov 2009 16:02:16 +0000

Do you know any software working on linux, which would be able to get the data about ICC profile from the display (or at least the hardware profile selected by a button on the display)? I recall someone mentioned on argyllcms list that the “communication protocol” is rather proprietary.

I have a Samsung XL20 and any time I switch the mode, I have to load the appropriate profile in gnome again.

By: prokoudine

prokoudine — Wed, 04 Nov 2009 21:29:28 +0000

BTW, I wonder if you could as far as merging and extending DDC/CI functionality from existing library and GNOME applet. Newer wide gamut displays store ICC profiles in their own LUT. Supporting them would be really awesome.

By: Pascal de Bruijn

Pascal de Bruijn — Tue, 03 Nov 2009 18:49:13 +0000

I have experimental Ubuntu Karmic packages available at my PPA:

https://launchpad.net/~pmjdebruijn/+archive/ppa/+packages

By: prokoudine

prokoudine — Tue, 03 Nov 2009 15:18:04 +0000

But the point is, you don’t have to scrap You can support Oyranos later, just keep it in mind

By: Anonymous

Anonymous — Tue, 03 Nov 2009 11:10:17 +0000

This work seems awesome; thank you for doing it.

A suggestion to make it a little more “Just Works”: for the benefit of people without color calibration hardware, how about remembering the color calibration information, indexing it by the monitor’s EDID information, optionally uploading that to a central site, and using that information as part of the wizard if you don’t have the hardware? “You don’t have color calibration hardware attached. However, your monitor (vendor “FOO” model 1234) has color calibration data available in our database. Would you like to use that color calibration data?” Or, if you don’t want to assume based on attached color calibration hardware, offer the choice: “Measure color calibration data using attached calibration hardware >” or “Use known color calibration data for monitor vendor and model >”, with each option disabled when not available (preferably with an explanatory sentence below it, “No color calibration hardware attached” and “No known color calibration data for monitor with vendor ‘FOO’ and model 1234 not known”, respectively).

You can get the monitor’s EDID information from the xrandr property “EDID_DATA”, though that means you have to parse it yourself; however, since you only want the vendor and model out of it, that should prove easy enough.

By: hughsie

hughsie — Tue, 03 Nov 2009 08:44:44 +0000

Sure, there are loads of other devices, made by several other companies. Just check the ArgyllCMS website for a list of supported devices. I’m pretty sure Pantone are actually just giving their name to the Huey, as you can actually buy a Huey from other makers too.
You can, to some extent, profile a screen using visual indicators, but this will only give you a rough reading without doing hundreds of manual tests. Also, the black level and gamma of an LCD screen changes quite a lot based on the viewing angle, and so profiling “by eye” is actually really hard to do.

By: nicu

nicu — Tue, 03 Nov 2009 08:39:46 +0000

I understand 50$ is a relatively small sum (well, to buy it in my country will add a lot to it, but this is a different story), however Pantone is a *really evil* company (for example they snubbed the GIMP folks when those tried to wind a way to collaborate) and me, as probably many other FLOSS people, would find uncomfortable to give any money to them.

Isn’t possible to calibrate the screen without dedicated hardware? I remember some Windows calibration tools (available on the display’s drivers disks) there you can do the job only with software, by choosing colors and shades of gray.

By: hughsie

hughsie — Mon, 02 Nov 2009 23:52:08 +0000

commit c661be0f100af2fe75191c2159c1daeb22a31601
Author: Richard Hughes
Date: Mon Nov 2 23:50:05 2009 +0000
Don’t crash when the EDID data is not available

By: hughsie

hughsie — Mon, 02 Nov 2009 23:48:12 +0000

I thought about integrating it with gnome display caplet, but I think in the long run gcm should manage printer, scanner and camera profiles too, where integrating it with the display capplet makes little sense. Calibrating a monitor is just one link of the chain in a digital work-flow.

As for a donate button, it’s very kind of you. I get employed by Red Hat to work on cool stuff, so I don’t think it’s required to send donations. If you really want to buy me something, amazon (UK) vouchers are probably the way to go. Thanks!