[Digikam-users] Loosing all Metadata when editing

[Max Bedacht]

I'm not sure what code bases are being used (I am using a standard Ubuntu
10.4 installation (32 bit) with DigiKam installed with the Synaptic Package
Manager).

There seems to be some irregularity with the problem - not occurring the
same way all the time - but since I have been verifying step by step I have
not isolated anything other than I described in the first message.

I did discover that if I save as .jpg after doing the edits that the
metadata is preserved. I have been using this as a workaround and it has
been stable.

I'm going to try other formats and look into filing a report in bugzilla.

Max Bedacht



On Mon, Jul 26, 2010 at 3:56 AM, Gilles Caulier <caulier.gilles at gmail.com>wrote:

> 2010/7/25 Max Bedacht <bedachtm at gmail.com>:
> > I am loosing all metadata when I edit an image with the built-in editor
> or
> > Showfoto and do a save-as.
> >
> > I have processed the images as follows:
> >
> > Convert from .cr2 to .png using the Batch Raw Converter tool (after this
> the
> > metadata is still there);
> > Geotag (after this the metadata is still there);
> > Edit using F4 or Showfoto - I have done free-rotate and color adjust, and
> > just color adjust)
> > Save as .png with a new name.
> >
> > After the save all the metadata is gone.
> > I get an error if I try to import the metadata from the original
> converted
> > .png
> >
> > I have done the editing sequence using Photoshop Elements 4.0 Editor
> > (installed with WINE) and with this the metadata is preserved.
> >
> > Has anybody run into this?
>
> Yes, me too. I processed around 130 RAW photo in editor (ARW to PNG),
> and sometimes, metadata are lost.
>
> It's not reproducible each time.
>
> I take a look in source code and PNG writter has the right code to
> backup metadata with Exiv2.
>
> I suspect something like this : i use a tool in editor and metadata
> are lost at this time, but still displayed in right side bar. You see
> the lossy action after to save and take a look back in target file.
>
> I process my RAW files like this : Raw import tool, ratio crop, free
> rotation, and sometimes some color correction tools, as
> B&W. I don't use CM there.
>
> As developer, i use all code from trunk, kdegraphics/libs, digiKam and
> exiv2. kipi-plugins is not used there.
>
> Can you confirm this ?
>
> Another point : can you reproduce this dysfunction if you save your
> RAW image in TIFF or JPEG ?
>
> It can be interresting to see all debug messages from a console, when
> you process a raw image.
>
> I recommend to open a new file in bugzilla about.
>
> Gilles Caulier
> >
> > DigiKam 1.2.0
> > Showfoto 1.2.0
> > Ubuntu 10.4
> >
> >
> >
> >
> > _______________________________________________
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> > Digikam-users at kde.org
> > https://mail.kde.org/mailman/listinfo/digikam-users
> >
> >
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