Ratings, keywords missing from RAW to JPG outside Digikam 2.5. (Linux, Opensuse 11.4)

[Peter Mc Donough]

Hi

I added some ratings and keywords to DNG-RAW files and expected them to
show up in JPGs later.
JPGs produced with Digikam did show ratings and keywords.

The same RAW files opened with showFoto did neither show ratings nor
keywords.

The same when processing the raw files with the UFRaw/Gimp combination:
no keywords in JPGs. I didn't expect ratings.

Ratings and keywords are set in the Digikam configuration file.

What am I missing?

System: Linux (Opensuse 11.4), Digikam 2.5.

CU
Peter

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[tosca]

I don't think metadata are actually written in RAW files.

Marie-Noëlle

2012/3/9 Peter Mc Donough <[hidden email]>

Hi

I added some ratings and keywords to DNG-RAW files and expected them to show up in JPGs later.
JPGs produced with Digikam did show ratings and keywords.

The same RAW files opened with showFoto did neither show ratings nor keywords.

The same when processing the raw files with the UFRaw/Gimp combination: no keywords in JPGs. I didn't expect ratings.

Ratings and keywords are set in the Digikam configuration file.

What am I missing?

System: Linux (Opensuse 11.4), Digikam 2.5.

CU
Peter

--


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Retrouvez-moi aussi sur mon blog.
Et parcourez les Cévennes à ma façon avec Cévennes Plurielles,


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[Martin (KDE)]

Am 09.03.2012 21:53, schrieb Marie-Noëlle Augendre:
> I don't think metadata are actually written in RAW files.

And imho writing into raw files is a bad idea. raw is your original and
should never be altered. XMP side car files is the way to go but sadly
there is no standard way to handle it.

Martin

>
> Marie-Noëlle
>
> 2012/3/9 Peter Mc Donough <[hidden email]
> <mailto:[hidden email]>>
>
>     Hi
>
>     I added some ratings and keywords to DNG-RAW files and expected them
>     to show up in JPGs later.
>     JPGs produced with Digikam did show ratings and keywords.
>
>     The same RAW files opened with showFoto did neither show ratings nor
>     keywords.
>
>     The same when processing the raw files with the UFRaw/Gimp
>     combination: no keywords in JPGs. I didn't expect ratings.
>
>     Ratings and keywords are set in the Digikam configuration file.
>
>     What am I missing?
>
>     System: Linux (Opensuse 11.4), Digikam 2.5.
>
>     CU
>     Peter
>
>
> --
> <http://www.marie-noelle-augendre.com/photos/>
>
> Mes dernières photos sont dans ma galerie
> <http://www.marie-noelle-augendre.com/photos/>.
> Retrouvez-moi aussi sur mon blog <http://www.mnaugendre.com/>.
> Et parcourez les Cévennes à ma façon avec Cévennes Plurielles
> <http://www.cevennes-plurielles.com/>,
>
>
>
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users

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[Peter Mc Donough]

>> (Marie-Noëlle Augendre)
>> I don't think metadata are actually written in RAW files.
I assumed from the settings description that it were possible.

> (Martin)
> And imho writing into raw files is a bad idea. raw is your original and
> should never be altered. XMP side car files is the way to go but sadly
> there is no standard way to handle it.

-----------
 From the digikam handbook:

"The dual approach to store metadata in a database and in the image
files guarantees ultra fast searching and secure archiving freely
accessible to other applications, platforms and formats."
--------------

I would accept that writing into the original may not be a good idea,
but it should be possible writing into a copy. It would be rather
limiting if ratings, keywords and copyright remarks can only be read
with Digikam.

Peter
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[Martin (KDE)]

Am 10.03.2012 14:54, schrieb Peter Mc Donough:

>>> (Marie-Noëlle Augendre)
>>> I don't think metadata are actually written in RAW files.
> I assumed from the settings description that it were possible.
>
>> (Martin)
>> And imho writing into raw files is a bad idea. raw is your original and
>> should never be altered. XMP side car files is the way to go but sadly
>> there is no standard way to handle it.
>
> -----------
> From the digikam handbook:
>
> "The dual approach to store metadata in a database and in the image
> files guarantees ultra fast searching and secure archiving freely
> accessible to other applications, platforms and formats."

This is true, but as I want my raw files unaltered (and writing data
into canon raw files is only experimental) I never do this for raw
files. But jpeg and png is fine.

> --------------
>
> I would accept that writing into the original may not be a good idea,
> but it should be possible writing into a copy. It would be rather
> limiting if ratings, keywords and copyright remarks can only be read
> with Digikam.

This is not only possible with digikam. But writing config data to
sidecar files is not that old and not standardized. So i.e. darktable
uses a different set of data than digikam. I hope that one day all open
source programs use one way to write xmp sidecar files.

I use a two way with this. Final jpeg photos are rated and tagged
inline. Raw files are rated and tagged in DB only. As I use digikam for
rating and tagging only this is no limit to me. Currently I don't use
xmp sidecar files with digikam. As I use darktable for raw development
the raw development setup is stored in darktables xmp sidecar files (for
raw files only).

Martin

>
> Peter
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[Peter Mc Donough]

>> -----------
>>  From the digikam handbook:
>>
>> "The dual approach to store metadata in a database and in the image
>> files guarantees ultra fast searching and secure archiving freely
>> accessible to other applications, platforms and formats."
>> -----------
> (Martin)
> This is true, but as I want my raw files unaltered (and writing data
> into canon raw files is only experimental) I never do this for raw
> files. But jpeg and png is fine.
>
> This is not only possible with digikam. But writing config data to
> sidecar files is not that old and not standardized. So i.e. darktable
> uses a different set of data than digikam. I hope that one day all open
> source programs use one way to write xmp sidecar files.

Now, this is not quite what I expected, but I will have to live with it.
I tagged a JPG, the TAG was visible in showfoto, so that works.

Maybe you can help with the following questions:
My tagged RAW files don't have XMP sidecars yet, I assume the
information is in the SQLite database used by Digikam, not in the files.

- Which settings are nessesary/possible to generate now XMP sidecars
from the existing available database information? This could probably
help with the 2nd question.

- The RAW files will processed into JPGs via the UFRaw/GIMP combination.
Do I have an option for getting TAGs from RAW to JPG? The files will
have the same names apart from the suffix.

Peter
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[Martin (KDE)]

Am 11.03.2012 17:24, schrieb Peter Mc Donough:

>>> -----------
>>>  From the digikam handbook:
>>>
>>> "The dual approach to store metadata in a database and in the image
>>> files guarantees ultra fast searching and secure archiving freely
>>> accessible to other applications, platforms and formats."
>>> -----------
>> (Martin)
>> This is true, but as I want my raw files unaltered (and writing data
>> into canon raw files is only experimental) I never do this for raw
>> files. But jpeg and png is fine.
>>
>> This is not only possible with digikam. But writing config data to
>> sidecar files is not that old and not standardized. So i.e. darktable
>> uses a different set of data than digikam. I hope that one day all open
>> source programs use one way to write xmp sidecar files.
>
> Now, this is not quite what I expected, but I will have to live with it.
> I tagged a JPG, the TAG was visible in showfoto, so that works.
>
> Maybe you can help with the following questions:
> My tagged RAW files don't have XMP sidecars yet, I assume the
> information is in the SQLite database used by Digikam, not in the files.
>
> - Which settings are nessesary/possible to generate now XMP sidecars
> from the existing available database information? This could probably
> help with the 2nd question.

As I don't use digikams sidecar files I can only guess: Have you enabled
sidecar files in digikams config dialogue (in the metadata section at
the bottom of the list)?

>
> - The RAW files will processed into JPGs via the UFRaw/GIMP combination.
> Do I have an option for getting TAGs from RAW to JPG? The files will
> have the same names apart from the suffix.

I don't know of any. I usually use darktable for raw development and
export to jpeg/png. After this I tag my photos with digikam. If I have
to rework my raw settings I do it and let darktable export the photo (it
gets the original file name with "_01" as postfix). After that I extract
the exif data from the old photo, delete the old one, remove the "_01"
postfix of the new filename and import the exif data back (now to the
new file). With this I don't loose any settings. But I have to tag all
photos twice (mostly done in one run anyway).

Martin

>
> Peter
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[Andreas T. Ege]

Hi there,

> - The RAW files will processed into JPGs via the UFRaw/GIMP combination.
> Do I have an option for getting TAGs from RAW to JPG? The files will have the same names apart from the suffix
With digikam you can export the exif data to file and then import them to another picture, so if the tags are in exif they get copied as well. As far as I'm aware you can do the same with xmp sidecar, but I can't check right now (no digikam on my phone ;) ).

Ufraw used on it's own will keep existing exif data and the resultin jpg will inherit it if I remember right, but Gimp will 'loose' existing exif and fill it with it's own.



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Am 11 Mar 2012 um 16:24 schrieb Peter Mc Donough <[hidden email]>:

>>> -----------
>>> From the digikam handbook:
>>>
>>> "The dual approach to store metadata in a database and in the image
>>> files guarantees ultra fast searching and secure archiving freely
>>> accessible to other applications, platforms and formats."
>>> -----------
>> (Martin)
>> This is true, but as I want my raw files unaltered (and writing data
>> into canon raw files is only experimental) I never do this for raw
>> files. But jpeg and png is fine.
>>
>> This is not only possible with digikam. But writing config data to
>> sidecar files is not that old and not standardized. So i.e. darktable
>> uses a different set of data than digikam. I hope that one day all open
>> source programs use one way to write xmp sidecar files.
>
> Now, this is not quite what I expected, but I will have to live with it.
> I tagged a JPG, the TAG was visible in showfoto, so that works.
>
> Maybe you can help with the following questions:
> My tagged RAW files don't have XMP sidecars yet, I assume the information is in the SQLite database used by Digikam, not in the files.
>
> - Which settings are nessesary/possible to generate now XMP sidecars from the existing available database information? This could probably help with the 2nd question.
>
> x.
>
> Peter
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users

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[Peter Mc Donough]

>> - The RAW files will processed into JPGs via the UFRaw/GIMP
>> combination. Do I have an option for getting TAGs from RAW to JPG?
>> The files will have the same names apart from the suffix

> With digikam you can export the exif data to file and then import
> them to another picture, so if the tags are in exif they get copied
> as well. As far as I'm aware you can do the same with xmp sidecar,
> but I can't check right now (no digikam on my phone ;) ).

I thought the purpose of a computer program is reducing
repetitive work :-?

>
> Ufraw used on it's own will keep existing exif data and the
> resulting jpg will inherit it if I remember right, but Gimp will
> 'loose' existing exif and fill it with it's own.

This is no good news.
Probably the best I can do is keeping the information for the original
in an XMP siedecar and in EXIF, and copy it when necessary and possible.

Thanks all
Peter

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