[Digikam-users] color management: monitor profile greyed out

Daniel Bauer linux at daniel-bauer.com
Tue Nov 21 08:03:24 GMT 2006

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 Bauer photographer Basel Switzerland
professional photography: http://www.daniel-bauer.com
Madagascar special: http://www.sanic.ch

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