[Digikam-users] Tags and everything related to them

[Wolfgang Mader]

On Friday 25 July 2014 14:32:47 Veaceslav Munteanu wrote:
> Hello everybody.
> 
> I want to thank everybody who sent me pack of images to test. I really
> called them nuke pack, because they really had everything in them:
> legacy tags, duplicates and obsolete tags :D
> 
> Thanks to them I was able to reproduce a lot of issues and fix them all.
> 
> What I did:
> 
> 1. Fixed more than 3 different scenarios in which digiKam could not write
> tags 2. Fixed IPTC being out of sync with XMP
> 3. Fixed _Digikam_root_tag_ which appears in images tagged with old
> version of digiKam
> 4. Added extra deduplication when writing tags + logic to remove all
> occurrences of _Digikam_root_tag_
> 5. Tested all packs received from users: All images contain fresh
> clean tags after read then write
> 6. XMP sidecar files also tested: read then write will remove any
> inconsistency 7. Fixed Tags Manager write option, which was broken
> 8. Tested all 3 options to read and write metadata: from maintenance,
> from menu and from tags manager
> 9. Tested face tags and read/write on them
> 10. If you have large collections, use Tags Manager write option, it
> will only write tags and process will be much faster

Hello Veaceslav,

thank you for your work on this. This is great news! In order to remove all 
tags from already taged images, do you recommend to use Tags Manager (your 
point 10)?

Do you still need more images. I can prepare a set next week (I am right now 
away from my images).

> 
> Anybody who can compile and run git repository can test and give me
> some feedback :)
> I hope you will really enjoy tagging, because I spent almost a week,
> full time, working on them ^_^

You can be sure that this work is appreciated!

Best,
Wolfgang

> 
> 
> On Thu, Jul 24, 2014 at 7:47 PM, Gilles Caulier
> 
> <caulier.gilles at gmail.com> wrote:
> > digiKam XMP namespace is used primary to populate digiKam database and
> > duplicate database metadata to image, WITHOUt to lost anything.
> > 
> > In second way, digiKam update also tags at other place in XMP and
> > IPTC, but this can introduce some leak about database properties (IPTC
> > for ex as serious limitation about strings. Nested Tags are also badly
> > supported in standard XMP namespace.
> > 
> > Gilles Caulier
> > 
> > 2014-07-24 17:55 GMT+02:00  <cl at isbd.net>:
> >> Gilles Caulier <caulier.gilles at gmail.com> wrote:
> >>> 2014-07-24 12:05 GMT+02:00  <cl at isbd.net>:
> >>> > Gilles Caulier <caulier.gilles at gmail.com> wrote:
> >>> >> digiKam always write tags in XMP, into dedicated "digiKam" namespace.
> >>> >> 
> >>> >> After to write and read, as this XMP namespace is the first checked
> >>> >> to
> >>> >> sync database, other and old place in exif, iptc or xmp where tags
> >>> >> are
> >>> >> recorded must be ignored.
> >>> > 
> >>> > Well that's pretty much useless IMHO, what happens when you move some
> >>> > images to other places?
> >>> > 
> >>>  >what happens when you move some images to other places
> >>> 
> >>> ??? places ? What do you mean exactly ? Album ? if yes, this have no
> >>> effect on tags.
> >> 
> >> I mean other applications.  Digikam isn't the only program in the
> >> world that uses tags on images.  By creating its own little private
> >> place to keep tags it means it's never going to cooperate with other
> >> programs using tags.
> >> 
> >> I mean what about images which one transfers to a web page and/or web
> >> gallery?  They use tags too.
> >> 
> >> I understand it may be difficult but without the ability to manage
> >> tags in such a way that other programs can see and use them then they
> >> are fundamentallyy useless (for me anyway).
> >> 
> >> --
> >> Chris Green
> >> ·
> >> 
> >> _______________________________________________
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> >> Digikam-users at kde.org
> >> https://mail.kde.org/mailman/listinfo/digikam-users
> > 
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