hey,
On Thu, Jul 18, 2013 at 8:37 AM, Willem Ferguson <
[email protected]> wrote:
> On 18/07/2013 04:36, [email protected] wrote:
>
> From: Alexander Wagner<[email protected]>
>
> >> >Open source is about collaboration and co-operation. What can we do to
> >> >help solve the metadata problem?
> > I fear the learning curve is quite steep here.
> >
> > Some helping hand from the gurus out there would be great.
> >
> > --
> 1) The easiest step towards improving the metadata problem is probably
> to implement the full set of descriptors of the Simple Dublin Core
> Metadata Element Set (SDCMES). This specification has about 15 fields,
> of which most are directly usable in dt. If a subset of the SDCMES is
> already implemented in dt, then I assume that it would not be too
> difficult to include all 15 fields?
>
i don't think it is a good idea to implement lists of tags by hand. the way
to support whatever is to take a list like
http://www.exiv2.org/tags.html
and make it into a c-header automatically with a script (or look through
the exiv2 source, there might already be just the header you are looking
for).
>
> 2) The second step would be to allow the user to choose which of these
> fields should be displayed on the left hand of the images. This needs to
> correspond to the fields of the metadata editor on the right hand panel.
>
> 3) A third step would be to create a lookup table so that users can
> locally rename metadata fields for their own collection. For instance, a
> particular user may perhaps like to rename the SDCMES 'Relation' tag to
> be 'Country' for his/her own collection.
>
we have that system in the core, it will store some shadow metadata that
will be exported (but will never overwrite your original):
https://github.com/darktable-org/darktable/blob/master/src/common/metadata.h
cheers,
jo
> Of course the long term future probably lies in IPTC and ultimately dt
> would have to support IPTC tags. But maybe the full development of the
> Simple Dublin Core will make it easier to, afterwards, move on to IPTC??
> As far as I can make out, Dublin Core was meant mostly towards documents
> and not towards media such as images. Ultimately, if dt is to maintain
> the strong position it has now, the move to IPTC (friendly towards
> media) is probably a requirement.
>
> Is there any one of the dt developers who is prepared to give direction
> to this conversation? If we could have guidance on what is reasonably
> easily do-able and what would be much more difficult, then a basic
> specification or white paper could be drawn up. Once this has been
> achieved, we hope someone will volunteer to assist with the actual code.
>
> Kind regards,
> Willem
>
>
>
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