[Openicc] OpenICC GSoC 2011 ideas

[Kai-Uwe Behrmann]

Am 23.03.11, 10:07 -0000 schrieb Richard Hughes:
> On 23 March 2011 08:37, Kai-Uwe Behrmann <ku.b at gmx.de> wrote:
>> I would like make Oyranos to use this scheme/library to converge with
>> ArgyllCMS and any interessted CMS.
>
> You mean colord :-)

We welcome all and especially open source CMS'es with this project.

> I think defining how to assign an identifier to a device is the
> hardest task, and should probably be explicit in the project
> description. For instance, colord uses "xrandr_%s" for display
> devices, where %s is the xrandr device name.
>
> If the ID is supposed to be specific using multiple hosts (perhaps
> where the database store is shared between hosts, or is centrally
> managed) then the ID would need to include details from the EDID or
> DMI database as well.
>
> If the monitor profile is specific to the display device and not
> dependent on the connection method (e.g. DVI or VGA) then the xrandr
> device name shouldn't be included at all. In this instance it might
> make sense to include the EDID_vendor properties as match keys on the
> device just like we have in the profile.
>
> This means we're not mapping a "profile" to a "device" anymore, we're
> defining a semi-qualified match policy on random metadata to random
> metadata which is impossible for a basic user to understand in a GUI.

Agreed. A hard device ID will break in far too many cases.

> A can of worms indeed.

With Oyranos, we have the quite opposite experience so far. The fuzzy 
matches work best for the project.

> Richard
>
> p.s. If such a standard was worked on, I'd be insane not to use it in
> colord. I'm trying not to be hugely negative, I'm just pointing out
> the pitfalls.


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