color management: monitor profile greyed out

[Daniel Bauer-2]

Hi,

In the setttings I can't choose a profile for the monitor, it's greyed out
and "just takes one". Why?

Daniel
--
Daniel Bauer photographer Basel Switzerland
professional photography: http://www.daniel-bauer.com
Madagascar special: http://www.sanic.ch
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[Gilles Caulier-2]

Le Vendredi 17 Novembre 2006 14:49, Daniel Bauer a écrit :
> Hi,
>
> In the setttings I can't choose a profile for the monitor, it's greyed out
> and "just takes one". Why?
>
> Daniel

set on Color mangement view just before... but , i recommend to unuse this
option at this moment. It's slow and i think to implemente screen CM under
digiKam is not the final solution. This must been done  by window manager (or
something like that), not the user application.

Gilles
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[Charlier, Etienne]

Hello,
 
I own a Spyder2express, If I understand well,it's better to apply the
monitor profile outside of digikam  
using tools like
http://www.etg.e-technik.uni-erlangen.de/web/doe/xcalib/  Am I correct
??
 
 
link to xcalib found on
http://en.wikipedia.org/wiki/Linux_color_management
 
Kind regards,
Etienne
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[Nicolas Vilars]

> I own a Spyder2express, If I understand well,it's better to apply the
> monitor profile outside of digikam  
> using tools like
> http://www.etg.e-technik.uni-erlangen.de/web/doe/xcalib/  Am I correct
> ??

Yes exactly.
You may also check with Argyll.

I wrote an howto using both tools and try to do some measure to see if
what we get is color correct:
http://linux.vilars.com/
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[Gilles Caulier-2]

On Monday 20 November 2006 17:06, Nicolas Vilars wrote:

> > I own a Spyder2express, If I understand well,it's better to apply the
> > monitor profile outside of digikam
> > using tools like
> > http://www.etg.e-technik.uni-erlangen.de/web/doe/xcalib/  Am I correct
> > ??
>
> Yes exactly.
> You may also check with Argyll.
>
> I wrote an howto using both tools and try to do some measure to see if
> what we get is color correct:
> http://linux.vilars.com/

Yes, i'm agree. monitor color correction must be done outside digiKam in fact
and must be controled by screen driver (X11 in fact under linux), and not by
an user application directly.

Daniel, i never use here digiKam Monitor color correction. We have done this
option to be fully compliant with a color management workflow.

Gilles
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[Daniel Bauer-2]

On Tuesday 21 November 2006 07:53, Gilles Caulier wrote:

> On Monday 20 November 2006 17:06, Nicolas Vilars wrote:
> > > I own a Spyder2express, If I understand well,it's better to apply the
> > > monitor profile outside of digikam
> > > using tools like
> > > http://www.etg.e-technik.uni-erlangen.de/web/doe/xcalib/  Am I correct
> > > ??
> >
> > Yes exactly.
> > You may also check with Argyll.
> >
> > I wrote an howto using both tools and try to do some measure to see if
> > what we get is color correct:
> > http://linux.vilars.com/
>
> Yes, i'm agree. monitor color correction must be done outside digiKam in
> fact and must be controled by screen driver (X11 in fact under linux), and
> not by an user application directly.
>
> Daniel, i never use here digiKam Monitor color correction. We have done
> this option to be fully compliant with a color management workflow.
>
> Gilles

ehm - if you don't use monitor correction, then do you use SRGB as working
space? Or how do you avoid having displayed "wrong" colors (like when using
wide gamut workspace without monitor correction)?

Nicolas, Gilles, please explain if I'm right or wrong:

As I see it, correction outside digiKam is only to display (s)rgb pictures
correctly, i.e. to correct the "rgb-errors" of the monitor. But it can't
transform a picture from another working space (like wide gamut) to the
correct monitor display, or can it?

If I use (s)rgb for working space, don't I then loose color information in my
files compared to using wide gamut?

Daniel
--
Daniel Bauer photographer Basel Switzerland
professional photography: http://www.daniel-bauer.com
Madagascar special: http://www.sanic.ch
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Op dinsdag 21 november 2006 07:53, schreef Gilles Caulier:

  > > > http://www.etg.e-technik.uni-erlangen.de/web/doe/xcalib/  Am I
  > > > correct ??
  > >
  > Yes, i'm agree. monitor color correction must be done outside
  > digiKam in fact and must be controled by screen driver (X11 in fact
  > under linux), and not by an user application directly.
  >
Do I understand this discussion correctly. If I load the monitor
ICC-profile in the graphicscard with a utility like xcalib or dispwin
when starting the X11 environment, then there will be no more need to
use the "Use color managed view"-option from the advanced
colormanagement settings?

And is this through for digiKam only, or for every application that uses
colormanagement, as bibble for instance?

Caspar.
--
Wanneer vorm gaat overheersen, dreigt de inhoud in gevaar te
komen. --R.C.M.Pelger, UvL.
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