[Bug 221571] New: integrate rawtherapee into digikam

https://bugs.kde.org/show_bug.cgi?id=221571

           Summary: integrate rawtherapee into digikam
           Product: digikam
           Version: 0.10.0
          Platform: openSUSE RPMs
        OS/Version: unspecified
            Status: UNCONFIRMED
          Severity: wishlist
          Priority: NOR
         Component: general
        AssignedTo: [hidden email]
        ReportedBy: [hidden email]


Version:           0.10.0 (using KDE 4.3.1)
Installed from:    openSUSE RPMs

On January 4th, 2010 version 3.0 alpha 1 of the well-known RAW editing and
conversion program RawTherapee (http://www.rawtherapee.com) got released - with
one very important change: RawTherapee is now Open Source (GPLv3)!

This (and the fact that RawTherapee is modular, e.g. the interface and the
engine are seperate) mean that finally there is the opportunity to integrate
one of the finest RAW processors available for Linux right into digikam - it
would be great if this happened, because, in my opinon, handling RAW files is
one of the few weak points of digikam at the moment.

RawTherapee has got many advantages over dcraw, for example faster RAW
conversion, way better color reproduction (at least for me) etc.

I don't know much about the technical details (for example what should be
implemented in dcraw instead of digikam), but I think a better RAW workflow
would be very useful for a great number of users.

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=221571


Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
          Component|general                     |RAW files management
         Resolution|                            |INVALID




--- Comment #1 from Gilles Caulier <caulier gilles gmail com>  2010-01-07 08:48:39 ---
This is not the right place for this report.

digiKam use libraw as RAW decoder (http://www.libraw.org)

If rawtherapee core must be integrated in digiKam, this must be done in libraw
as well.

Please report to libraw team your wish... Thanks in advance

Gilles Caulier

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[Marcel Wiesweg]

https://bugs.kde.org/show_bug.cgi?id=221571


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--- Comment #2 from Marcel Wiesweg <marcel wiesweg gmx de>  2010-01-07 19:15:50 ---
Gilles, I dont think libraw is the right place to support rawtherapee's engine.
libraw is still basically a library wrapper around dcraw. rawtherapee is using
dcraw as well at the lowest level, for bit access, as does almost everyone, but
around that is much more (http://www.rawtherapee.com/?mitem=4&faqid=17) -
RawTherapee is algorithms. As far as I know it's the first time that a new set
of algorithms for RAWs (i.e., not written by Dave Coffin) is becoming
available, new demosaicing algorithms and a whole stack for postprocessing. I'm
a bit excited about that.

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=221571


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--- Comment #3 from Gilles Caulier <caulier gilles gmail com>  2010-01-07 23:16:00 ---
Marcel,

I know RawTherapee. I think libraw ithe right place to integrate new
demosaicing algorithm. libraw is alrady more than a simple library based on
dcraw code.

I CC Alex Tutubalin for a real viewpoint there...

Gilles

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[Alex Tutubalin]

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--- Comment #4 from Alex Tutubalin <lexa lexa ru>  2010-01-08 14:30:57 ---
RawTherapee is very interesting project, but.... take look into LibRaw's long
TODO list (http://www.libraw.org/about#todo).

The LibRaw's postprocessing stage (entirely derived from dcraw) is included
into the library just because it is *free* (already included in dcraw and we're
automatically make some LibRaw's sources from dcraw.c).

There is no plans to improve/change this postprocessing stage much *within*
LibRaw project. LibRaw's goal is to provide RAW data accessible for raw
converters/analyzers/etc developers without the exact knowlege about particular
format, camera firmware version etc.

Yes, digiKam uses our postprocessing calls. But most of LibRaw users are not.

Another problem is RawTherapee licensing. It licensed under GPLv3. We've
started with GPL3 two years ago, than switched to GPL2, than to LGPL2 (for
LibRaw Lite). We're planning to switch to something Apache-style (only
copyright notice in derived works) because GPL/LGPL licenses are really
show-stoppers for many users.
So, no GPLv3 code in LibRaw, thanks.

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           What    |Removed                     |Added
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          Component|Workflow                    |Interroperability

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