[Bug 164026] New: wish: use embedded thumbs within jpegs to speedup album display

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           Summary: wish: use embedded thumbs within jpegs to speedup album
                    display
           Product: digikam
           Version: unspecified
          Platform: SuSE RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: wishlist
          Priority: NOR
         Component: general
        AssignedTo: digikam-devel kde org
        ReportedBy: Michael.NoSpam gmx de


Version:            (using KDE 3.5.9KDE 1.2)
Installed from:    SuSE RPMsSuSE RPMs
OS:                Linux

Currently thumbnails are created on the fly and stored within subdirectory ~/.thumbnails. This - from my point of view - has two disadvatages:
1. occupies extra diskspace for thumbnails (for each user, for each computer within network)
2. re-building thumbnails is timeconsuming (especially on slow computers like mine:-)

My wish: Instead of storing thumbnails within separate directory use thumbnails already embedded by digital camera within jpeg file. Of course then one cannot change the size of thumbs, orientation of thumbs might be wrong. But if that approch will speedup display of albums and simultaneously reduces diskspace consumption, I'd really like that new feature.


Thanks, Michael
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[Gilles Caulier-4]

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caulier.gilles gmail com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|general                     |Thumbnails
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[Gilles Caulier-4]

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------- Additional Comments From caulier.gilles gmail com  2008-06-14 12:09 -------
Michael,

And how you will do with read only file format like RAW ?

Gilles Caulier
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------- Additional Comments From Michael.NoSpam gmx de  2008-06-15 16:19 -------
Hello!

Currently, I'm not using RAW, thus I can only guess... To my knowledge RAW files, too, include jpeg previews (I'm using the Dynax D7, and it somewhere stores thumbnails for RAWs - maybe side by side to the RAW file?).

From your question I guess that you are already considering editing/changing of pictures? In that case you are right, the embedded jpeg thumbnail needs to be adapted.

My main intention is to use the in-camera generated, jpeg-embedded thumb (maybe ugly/coarse, e.g. extracted by "jhead -st thumb.jpg your-photo.jpg") to get fast thumb preview within albums. If RAW won't work then one might use the currently available mechanisms.

My main concern is to speedup thumbnail display for slow machines. Maybe extraction of embedded tumbnail is a slower process anyhow compared to creating a fresh thumb. In that case my idea simply won't make any sense.


Regards, Michael
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