[Digikam-users] problems with ICC profiles

[Gilles Caulier]

On Friday 19 May 2006 12:31 pm, Daniel Bauer wrote:
> Am Donnerstag, 18. Mai 2006 21:24 schrieb Gilles Caulier:
> > Daniel, have you tried this one for your Canon 20D :
> >
> > http://digikam3rdparty.free.fr/ICCPROFILES/CameraProfiles/EOS 20D.icc
> >
> > Gilles
>
> I still don't come to any good result in 0.9.0 svn...
>
> I've downloaded CinePaint and tried any conversions between any ICC's, no
> one came out that dark as in digikam, but also no one came out "good"
> (pictures always appeard to "flat" and still too dark).
>
> I played with different profile-combinations in UFraw, too. When using EOS
> 20D.icc for input and adobe srgb for output, the picture appears as dark as
> in digikam, but then I can correct gamma (to 0.32) and linearity (to 0.07)
> which gives a "not so bad" result, at least in the shown preview (of course
> for real usable results one would have to use more time...).
>
> I could not find any place in digikam to adjust gamma/linearity for
> transforming raws (yes, there is gamma somewhere, but no linearity, and to
> adjust one has to play with both of them at the same time).
>
> Now I've spent hours in "ICC-websites", I guess I understand the
> theoretical purpose, but I don't accomplish in practice.
>
> I've asked around my photographer colleagues, and it seems, everybody has
> some ideas, but nobody really *knows*. Those few (extremely up-to-date
> digital studios) who really use profiles also have (very expensive!)
> calibrated monitors, scanners, proof-printers and special calibration/color
> management software and hardware (like monitor densitometers etc.) - and
> all this was set up by experts from the suppliers. And yes: they use Mac.
>
> However, there should be a simple way to get acceptable results, isn't it?
> Or am I just too old and stupid for the modern times?
>
> I still hope, somebody can help me...
>
> Daniel

Daniel, put me some RAW files somewhere to download, i will trying to perform 
tests...

Also, witch LCms library version you use in your system ?

Gilles