[Digikam-devel] extragear/graphics/digikam

[F.J.Cruz]

El Martes, 3 de Enero de 2006 13:34, Gilles Caulier escribió:
> Le Mardi 3 Janvier 2006 13:27, F.J.Cruz a écrit :
> > El Martes, 3 de Enero de 2006 12:41, Gilles Caulier escribió:
> > > SVN commit 493814 by cgilles:
> > >
> > > Digikam from trunk : and finally RAW file decoding settings are now
> > > used by IE and Showfoto...
> > >
> > > Actually, the RAW file decoding settings implementation provide these
> > > parameters :
> > >
> > > - Enable Quality Decoding (bool) : If disable, we using old dcraw
> > > command line syntax with '-q' parameter alone. If Enable we using
> > > addition quality factor require by last dcraw release. - Quality
> > > Decoding Factor (int 0-4) : The famous factor using to optimize RAW
> > > decoding image (0 for slow computer, 3 for speed computer)
> > >
> > > TO DIGIKAM TEAM :
> > >
> > > - I have tested using this implementation using dcraw v7.49, not the
> > > last one released by Dave Coffin. - We can add any other advanced RAW
> > > decoding parameter on settings dialog tab : * -f : Interpolate RGB as
> > > four colors. This blurs the image a little, but it eliminates false 2x2
> > > mesh patterns. * -a : Automatic color balance. The default is to use a
> > > fixed color balance based on a white card photographed in sunlight. *
> > > -w : Use the color balance specified by the camera. If this can't be
> > > found, dcraw prints a warning and reverts to the default. * -n : By
> > > default, dcraw clips all colors to prevent pink hues in the highlights.
> > > Combine this option with -b 0.25 to leave the image data completely
> > > unclipped. * -j : For Fuji Super CCD cameras, show the image tilted 45
> > > degrees so that each output pixel corresponds to one raw pixel. * -s :
> > > For Fuji Super CCD SR cameras, use the secondary sensors, in effect
> > > underexposing the image by four stops to reveal detail in the
> > > highlights. For all other cameras, -j and -s are silently ignored.
> >
> > In my opinnion, we must add all color balance options and colors
> > clipe/unclip feature.
>
> You want say that i need to add 3 new QCheckBox in setup dialog to :
>
> 1 - Use automatic Color Balance (-a)
> 2 - Use  Color Balance from Camera (-w)
> 3 - Interpolate RGB as four colors (-f)
>
> "clips all colors to prevent pink hues in the highlights" option (-n) is
> more complicated to implemente because it's require to set brightness (-b)
> to 0.25. Have you already used this option ? Have you any feedback about ?
>

Usually, I use this option with ufraw for my raw photos, but not with dcraw 
from command line.

Paco.

> Gilles
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