[Digikam-devel] extragear/graphics/digikam/utilities/imageeditor/editor

[Gilles Caulier]

Le Mercredi 14 Décembre 2005 13:35, Gilles Caulier a écrit :
> Le Mercredi 14 Décembre 2005 13:30, vous avez écrit :
> > Am Mittwoch, 14. Dezember 2005 09.33 schrieb Gilles Caulier:
> > > Le Mercredi 14 Décembre 2005 09:27, Thorsten Schnebeck a écrit :
> > > > > > Another problem I have with the RAW cr2 files, when I open
> > > > > > them with IE the size is only 1/4, i.e. width and height are
> > > > > > half the real size only.
> > > > >
> > > > > Hum, i suspect a problem with dcraw program and CR2 file. Can
> > > > > you trying with dcraw by command line to convert CR2 file to
> > > > > PNG for example ?
> > > > >
> > > > > Another test can be done using biblelabs (www.bibblelabs.com)
> > > > > program, witch using dcraw implementation inside to decode RAW
> > > > > files.
> > > > >
> > > > > Nota : i remember a decoding problem with a CR2 file coming
> > > > > from you. Do you remember the green _FROGS_ (:=))) :
> > > > >
> > > > > http://digikam3rdparty.free.fr/Images_2_Test_DImg/RAW/CANON-EOS
> > > > >350D.CR2
> > > > >
> > > > > Gilles
> > > >
> > > > Aloha,
> > > >
> > > > seems to be the "-h" option of the two dcraw commands in
> > > > libs/dimg/loaders/rawloader.cpp. Drop the option and you have ful
> > > > sized images in IE.
> > >
> > > What the problem with -h option ? The Raw decoding speed is decreased
> > > without this option ? Please give me a feedback before to change...
> > >
> > > Gilles
> >
> > Gilles, without the -h option it works as it should, I get the correct
> > picture size. Reading the dcraw help it is clear that -h divides the
> > image by 4. So there is no problem with dcraw, we have to leave out -h.
>
> I'm not agree with you. Why -h option working fine with other file formats,
> and with any CR2 file that you have provide ? I suspect a problem in dcraw
> with CR2 and -h option...
>
> > The downside is that it is very slow, for my cr2 of 3474x2312 pixels it
> > takes 50sec to convert on a 3GHz i386 machine.
>
> This is a major problem ! We cannot frozen IE during 50 s to display one
> image (:=)))...

I Finding the solution : dcraw -q (Use simple bilinear interpolation for quick 
results) give speed results with the right size. I will provide a new IE 
setup options area for RAW file formats decoding.

-- 
Gilles