[Bug 204138] New: Possibility to extract JPEG previews from RAW files

[Milan Knizek]

https://bugs.kde.org/show_bug.cgi?id=204138

           Summary: Possibility to extract JPEG previews from RAW files
           Product: digikam
           Version: unspecified
          Platform: Compiled Sources
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: wishlist
          Priority: NOR
         Component: general
        AssignedTo: [hidden email]
        ReportedBy: [hidden email]


Version:           1.0.0_beta4svn (using KDE 4.2.4)
OS:                Linux
Installed from:    Compiled From Sources

It would be nice if digiKam can extract the ebmedded JPEG previews from RAW
files during import from the camera/card reader. Some RAW files can have more
embedded images, the import plugin should allow the user to select which one to
extract.

Reasoning: Some cameras (Canon EOS 300D, 5D Mark II, ...) store a full
resolution JPEG image in the CR2 RAW file. Instead of "developing" from RAW
file again, it is often sufficient to use this JPEG preview as a final image.

FYI, exiv2 command line to extract the second embedded JPEG would be:

$ exiv2 extract -ep2 image.cr2

I can provide CR2 files for testing.

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=204138





--- Comment #1 from Gilles Caulier <caulier gilles gmail com>  2009-08-17 09:45:01 ---
We already use these embedded JPEG images to render RAW preview and thumbs...
It's done internally in digiKam using Libraw.

Gilles Caulier

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=204138


Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|general                     |Camera GUI
            Version|unspecified                 |1.0.0-beta4




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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=204138


Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|1.0.0-beta4                 |1.0.0




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https://bugs.kde.org/show_bug.cgi?id=204138


Roman Prots' <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[hidden email]




--- Comment #2 from Roman Prots' <rprots gmail com>  2010-01-14 13:42:59 ---
We may want to add functionality that will allow to extract previews from set
of RAWs instead of converting RAWs. Usually they are enough for previews /
sharing and extracting process is much more faster.

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=204138


Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|Camera GUI                  |Import




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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=204138

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[hidden email]
            Summary|Possibility to extract JPEG |Possibility to extract JPEG
                   |previews from RAW files     |previews from RAW files
                   |                            |during camera import

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[Laurent Espitallier]

https://bugs.kde.org/show_bug.cgi?id=204138

Laurent Espitallier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |laurent.espitallier@laposte
                   |                            |.net

--- Comment #3 from Laurent Espitallier <[hidden email]> ---
*** Bug 303560 has been marked as a duplicate of this bug. ***

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=204138

--- Comment #4 from Gilles Caulier <[hidden email]> ---
Since 3.1.0 release, Batch Queue Manager is able to extract Raw preview in a
processed queue. You can batch save it in your preferred format. It's not
enough ?

Gilles Caulier

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[Jochen Keil]

https://bugs.kde.org/show_bug.cgi?id=204138

--- Comment #5 from Jochen Keil <[hidden email]> ---
I tried the raw extraction feature in 3.1.0 out today and it does exactly what
I want.
That's really awesome, thank you very much!

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=204138

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
   Version Fixed In|                            |3.3.0
         Resolution|---                         |FIXED

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