[Digikam-users] lost all tags on canon raw images

[Jim Dory]

Well, I just looked at DNG and it seems to work okay writing tags to
metadata. I used the DNG converter under tools to convert a cr2 file. It
shaved the image down from 7.5 MB to 6.9MB. Not significant for my Canon 30d
but maybe if I upgrade to the much larger image size of say the 7D, then it
may start getting important. I did a brief google on the subject and I
didn't find that it has any deleterious effects so far - maybe some more
research is in order. Had you considered doing that and if so, why did you
reject it? It is one more (or a couple) steps in post processing which isn't
great.

/jim

On Sun, Feb 21, 2010 at 1:26 PM, Adam <photos at papettys.com> wrote:

>
> I use canon raw.
>
> I keep tagging in hopes that it gets fixed in the future. Thats why I
> backup the db so often
>
>
> *From:* Jim Dory <james at dorydesign.com>
> *To:* digiKam - Home Manage your photographs as a professional with the
> power of open source <digikam-users at kde.org>
> *Sent:* Sun, February 21, 2010 4:56:41 PM
>
> *Subject:* Re: [Digikam-users] lost all tags on canon raw images
>
> Thanks Adam,
>
> Do you use Canon Raw? I'm curious of what strategy I should use for these
> images. If tagging these raw images don't write to metadata but only the
> database (currently the issue on my computer at least), then are you or
> whomever that is doing this with Canon raw just tagging and relying on the
> database - thus hoping that the issue is someday fixed? Or don't care? In a
> perfect world for me, I could tag my raw images, then when one moves me to
> edit it and save as tiff or jpeg to share on something like flickr - which I
> do now - that the keywords/tags would move along the stream and show up as
> tags on flickr or other photosharing site. But mainly it seems if the tags
> were written to metadata keywords then they would be transportable to other
> programs far into the future without worrying too much about losing the
> tags/keywords.
>
> cheers, Jim
>
>
> On Sun, Feb 21, 2010 at 12:34 PM, Adam <photos at papettys.com> wrote:
>
>> I think, it is a problem with Canon Raw, or at least I know it does not
>> work with Canon. It is the plugin that Digikam used to write the metat data,
>> not really a digikam issue.
>>
>> I setup a backup that runs every 4 hours just copies the database to other
>> folders. I almost lost all mine when I did an upgrade recently, but the
>> backups saved me. Good luck
>>
>>
>> *From:* Jim Dory <james at dorydesign.com>
>> *To:* digiKam - Home Manage your photographs as a professional with the
>> power of open source <digikam-users at kde.org>
>> *Sent:* Sun, February 21, 2010 4:18:11 PM
>> *Subject:* Re: [Digikam-users] lost all tags on canon raw images
>>
>> Thanks for your help!
>>
>> It seems that on my computer at least, raw metadata in Digikam is broken.
>> I will avoid tagging until I get that figured out - I'll see if I can work
>> it out in another program for tags/keywords in the meantime.
>>
>> Does raw tags/keywords work for others in Digikam? Can people use the
>> Image/Metadata/Edit IPTC for instance? On mine, I cannot navigate or click
>> on anything in that window on a raw image whereas jpegs are fine.
>>
>> cheers, Jim
>>
>> On Sun, Feb 21, 2010 at 12:06 PM, Vlado Plaga <rechner at vlado-do.de>wrote:
>>
>>> Am Sun, 21 Feb 2010 11:13:42 -0900
>>> schrieb Jim Dory <james at dorydesign.com>:
>>>
>>> > However, back when I was keeping the database on the
>>> > NFS shares there were many times I had to delete it and let it rebuild
>>> so I
>>> > could again view the images. The jpeg tags were always back - I just
>>> don't
>>> > know if my raw image tags were also there or perhaps I hadn't tagged
>>> them
>>> > yet. So I guess I had a false sense of security - thinking the tags
>>> were
>>> > somewhere in the image rather than database.
>>>
>>> Maybe you want to vote for "digiKam could warn when writing metadata to
>>> pictures fails"?
>>> https://bugs.kde.org/show_bug.cgi?id=220204
>>>
>>> I think it is a significant problem if you chose "write metadata to
>>> pictures", but for some reason digiKam can only store the information
>>> in its database.
>>>
>>> I'm sorry for you if you lost a lot of tags.
>>>
>>> > I run Gentoo's cutting edge (their unstable branch) so am probably
>>> asking
>>> > for trouble.
>>>
>>> In any case I recommend making backups from time to time. I use rsync
>>> with snapshots, but not with cron (yet). Similar to this solution:
>>> http://www.rsnapshot.org/
>>>
>>> Vlado
>>> _______________________________________________
>>> Digikam-users mailing list
>>> Digikam-users at kde.org
>>> https://mail.kde.org/mailman/listinfo/digikam-users
>>>
>>
>>
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>>
>
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