[Kde-imaging] Kde-imaging Digest, Vol 78, Issue 12

Jerome MARTY jmy at laposte.net
Mon Aug 16 19:23:16 CEST 2010


I have checked that the post processing settings are to their default,
the result is still too bright. I did extra tests with the following
settings : 

1.
dcraw -v -T -4 -h -W -r 2 1 1 1 -H 0 -q 3 -m 1 -o 0 IMGP2949.PEF

tifficc -v -w -b -t 1 -e -i ~/.iccprofiles/pen10.icm -o
~/.iccprofiles/srgb-d65.icm IMGP2949.tiff
IMGP2949_lcms_pen10_srgb-d65.tiff


2.
dcraw -v -T -4 -h -W -r 2 1 1 1 -H 0 -q 3 -m 1 -p
~/.iccprofiles/pen10.icm -o ~/.iccprofiles/srgb-d65.icm IMGP2949.PEF


3.
digikam(10810)/KDCRAW KDcrawIface::KDcraw::loadFromLibraw: LibRaw: dcraw
emulation:  ("-W", "-4", "-h", "-H 0", "-m 1", "-r 1.87952 0.937562
0.934604 0.937562", "-q 3", "-p /home/jer/.iccprofiles/pen10.icm", "-o
1", "/home/jer/Pictures/test/IMGP2949.PEF")


- 1. and 2. give identical results
- 3. gives over exposed result

I have activated color management in digikam, selected srgb-d65 working
space, BPC relative. pen10.icm profile comes from bibble pro 5.

To be noted that specifying a custom workspace profile for raw import
has no effect, digikam debug shows -o 4 for both Pro-Photo and custom.

Jerome Marty


> Subject: Re: [Kde-imaging] Digikam raw processing result different
> 	from libraw with input icc profile
> To: kde-imaging at kde.org
> Message-ID:
> 	<AANLkTi=z_GmX=9hs2BYVR6wbyWjYSedoPtJWWqQycrDj at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
> 
> In digiKam, are you sure that all post processing settings are
> disabled to compare results between digiKam and libraw. ?
> 
> Postprocessing are digiKam only settings. Libraw do not have it.
> 
> Gilles Caulier
> 
> 2010/8/12 Jerome MARTY <jmy at laposte.net>:
> >
> >
> > Hi all,
> >
> > I have troubles having the same result when importing RAW files in
> > digikam when specifying an input profile than when using LibRaw's
> > dcraw_emu test tool with same options. The result of the raw file import
> > in digikam is the same with no input profile but too much bright when
> > specifying one.
> > I am testing against digikam svn version with debugging enabled in order
> > to check options passed to libraw. The settings I'm using in digikam
> > taken from debug output are :
> > digikam(689)/KDCRAW KDcrawIface::KDcraw::loadFromLibraw: LibRaw: dcraw
> > emulation: ?("-W", "-4", "-h", "-H 0", "-r 1.86809 0.938161 0.94545
> > 0.938161", "-q 3", "-p /home/jer/.iccprofiles/pen10.icm", "-o 1",
> > "/home/jer/Pictures/test/IMGP2949.PEF")
> >
> > I'm checking against this:
> > /mnt/tmp/digikam/kdegraphics/libs/libkdcraw/build/test/dcraw_emu -v -W
> > -4 -h -H 0 -r 1.86809 0.938161 0.94545 0.938161 -q 3 -p
> > ~/.iccprofiles/pen10.icm -o 1 -T IMGP2949.PEF
> >
> >
> > Am I doing or interpreting something wrong ?
> >
> > I can provide samples to help and did some debug myself but did not
> > manage to pinpoint the origin of the problem.
> >
> > Regards,
> >
> > Jerome
> >
> >
> >
> > _______________________________________________
> > Kde-imaging mailing list
> > Kde-imaging at kde.org
> > https://mail.kde.org/mailman/listinfo/kde-imaging
> >






More information about the Kde-imaging mailing list