Question about "stars" rating integration with rawtherapee.

[Linuxguy123]

I am starting to use Rawtherapee (RT) as my raw conversion tool.

Rawtherapee 3.0 is being released under GPL.

I plan to continue to use DigiKam as my DAM tool.

As such, I would like to be able to "rate" raw images (ie give them a
star rating) in DK and then perform raw conversion on said rated images
in RT.

When I attempt to do this (ie rate raw files in DK and selected images
based on their DK rating in RT), none of the data appears to be
available.  Others have had a similar experience.

I've started a discussion on this topic in the rawtherapee forums.
 
http://rawtherapee.com/forum/viewtopic.php?p=17335#17335

Could someone explain to me/them how the DK rating data storage system
works with respect to storing the data within the raw image and also
suggest how DK and RT might be used or modified to work together ?

Thanks

LG aka RedForeman.

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[Gilles Caulier-4]

With RAW, the only solution is XMP sidecar files. It implemented in
digiKam 2.0.0

Gilles Caulier

2010/12/13 Linuxguy123 <[hidden email]>:

> I am starting to use Rawtherapee (RT) as my raw conversion tool.
>
> Rawtherapee 3.0 is being released under GPL.
>
> I plan to continue to use DigiKam as my DAM tool.
>
> As such, I would like to be able to "rate" raw images (ie give them a
> star rating) in DK and then perform raw conversion on said rated images
> in RT.
>
> When I attempt to do this (ie rate raw files in DK and selected images
> based on their DK rating in RT), none of the data appears to be
> available.  Others have had a similar experience.
>
> I've started a discussion on this topic in the rawtherapee forums.
>
> http://rawtherapee.com/forum/viewtopic.php?p=17335#17335
>
> Could someone explain to me/them how the DK rating data storage system
> works with respect to storing the data within the raw image and also
> suggest how DK and RT might be used or modified to work together ?
>
> Thanks
>
> LG aka RedForeman.
>
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users
>

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[Linuxguy123]

On Tue, 2010-12-14 at 06:26 +0100, Gilles Caulier wrote:
> With RAW, the only solution is XMP sidecar files. It implemented in
> digiKam 2.0.0

The following was posted in the RT forum.

===========================================================================

I suppose DK people speak only of what is or will be possible with DK.

It is absolutely possible to include XMP data in Tiff based raw files,
in peculiar NEF and DNG (I don't know for other formats). You can do
that with exiftool.

The issue is that photographers don't like modifications of their
original raws as they fear corruption or incompatibility with some SW.

So, other possibility is to include XMP metadata in copy of original
file either in same format or transcoded in DNG.

for example, Capture NX saves processing parameters inside a copy of the
NEF file.

Question : is DK able to read XMP data inside raw files ?

===============================================================================

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[Gilles Caulier-4]

yes, it can. in fact all is delegate to Exiv2 shared lib used by DK

Gilles Caulier

2010/12/15 Linuxguy123 <[hidden email]>:

> On Tue, 2010-12-14 at 06:26 +0100, Gilles Caulier wrote:
>> With RAW, the only solution is XMP sidecar files. It implemented in
>> digiKam 2.0.0
>
> The following was posted in the RT forum.
>
> ===========================================================================
>
> I suppose DK people speak only of what is or will be possible with DK.
>
> It is absolutely possible to include XMP data in Tiff based raw files,
> in peculiar NEF and DNG (I don't know for other formats). You can do
> that with exiftool.
>
> The issue is that photographers don't like modifications of their
> original raws as they fear corruption or incompatibility with some SW.
>
> So, other possibility is to include XMP metadata in copy of original
> file either in same format or transcoded in DNG.
>
> for example, Capture NX saves processing parameters inside a copy of the
> NEF file.
>
> Question : is DK able to read XMP data inside raw files ?
>
> ===============================================================================
>
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users
>

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