[Digikam-devel] Review Request 109087: Patch that enable digikam to write face tags into xmp metadata [Experimental]

[Veaceslav Munteanu]

> On Feb. 25, 2013, 4:34 p.m., Veaceslav Munteanu wrote:
> > Ok ... so here is the summary of http://www.metadataworkinggroup.com/pdf/mwg_guidance.pdf :
> > 
> > Image regions can suffer from 3 issues:
> >  - Re-size
> >  - Rotation
> >  - Crop
> > 
> > Image metadata doesn't suffer from re-size because it store values between 0 and 1. Digikam database suffer indeed because it store data in integer format. Resize should update database
> > Rotation should update database and image metadata.
> > Crop should update database and image metadata.
> > 
> > Now I need some info about where is the relevant code that re-size,rotate and crop images so I could patch it to meet metadata working group specifications.
> >

I'm stuck with database update...

Marcel,

so far I used FaceTagEditor class to get facetags list for metadatahub. When I try to delete all existing face tags(want to replace them with rotated ones), FaceTagsEditor::removeAllFaces() doesn't seem to work...

So, i get a lot of garbage tags into DB and also a lot of garbage rectangles on rotated image... Probably there is a cache, or something else that I don't get it.

Can you give me some hints? thank you!


- Veaceslav


-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
http://git.reviewboard.kde.org/r/109087/#review28044
-----------------------------------------------------------


On Feb. 21, 2013, 9:21 p.m., Veaceslav Munteanu wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> http://git.reviewboard.kde.org/r/109087/
> -----------------------------------------------------------
> 
> (Updated Feb. 21, 2013, 9:21 p.m.)
> 
> 
> Review request for Digikam, Gilles Caulier and Marcel Wiesweg.
> 
> 
> Description
> -------
> 
> This patch allows digikam to write face tags using Picassa/MetadataWorkingGroup format into image's xmp. This patch is still experimental, do not test with you usual photo collection. 
> Even if It shouldn't do anything bad, I don't want to mess your collection.
> 
> This patch depends on libkexiv2 new methods that I added. It's based on this commit:
> 
> http://quickgit.kde.org/?p=libkexiv2.git&a=commit&h=f2c50255227852bcb83115f13bfc4d4394a780ed
> 
> 
> This addresses bug https://bugs.kde.org/show_bug.cgi?id=277429.
>     http://bugs.kde.org/show_bug.cgi?id=https://bugs.kde.org/show_bug.cgi?id=277429
> 
> 
> Diffs
> -----
> 
>   digikam/fileaction/metadatahub.cpp ea74590 
>   libs/database/core/tagregion.h 436960f 
>   libs/database/core/tagregion.cpp 4fda6af 
>   libs/dmetadata/dmetadata.h fb9a617 
>   libs/dmetadata/dmetadata.cpp 8eccb45 
>   libs/dmetadata/metadatasettingscontainer.h 02d35d2 
>   libs/dmetadata/metadatasettingscontainer.cpp 3e6cd93 
>   utilities/setup/setupmetadata.cpp f73870c 
> 
> Diff: http://git.reviewboard.kde.org/r/109087/diff/
> 
> 
> Testing
> -------
> 
> I tested so far with my limited collection and setting and deleting tags works well. Tested with exiv2 -pa to see if tags are set or removed.
> 
> 
> Thanks,
> 
> Veaceslav Munteanu
> 
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.kde.org/pipermail/digikam-devel/attachments/20130228/6dea71e8/attachment.html>