[digikam] [Bug 328018] New: Face-related XMP metadata not displayed

[Jānis Elmeris]

https://bugs.kde.org/show_bug.cgi?id=328018

            Bug ID: 328018
           Summary: Face-related XMP metadata not displayed
    Classification: Unclassified
           Product: digikam
           Version: unspecified
          Platform: unspecified
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: Metadata
          Assignee: [hidden email]
          Reporter: [hidden email]

When I view XMP metadata (on the right side of the images), I can see no
face-related information, although it is there as displayed by, for example,
ExifTool.

I'm sure digiKam can read face information from XMP metadata, as when I moved
sample photos into digiKam album and synchronised metadata to digiKam DB, the
faces appeared all right. But the info doesn't get displayed on the metadata
tab (where I've selected to view all properties). It also doesn't get copied
into clipboard if I click on that icon.

Displaying of XMP metadata as such is supported, as I see other properties,
usually the XMP metadata modification time which is itself a XMP metadata
property. Also, there is an option to select to see XMP region information in
the custom filtered properties view (mwg-rs category).

Reproducible: Always

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=328018

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[hidden email]
            Version|unspecified                 |3.5.0

--- Comment #1 from Gilles Caulier <[hidden email]> ---
Instead to use Exiftool, try to use Exiv2 command line tool to see if face XMP
info can been shown. Exiv2 shared lib is used in background by digiKam to play
with metadata.

Also, look on the top of XMP metadata viewver, you have a button to switch from
Custom to Full view of metadata tags. Use Full mode and try again.

Gilles Caulier

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[Jānis Elmeris]

https://bugs.kde.org/show_bug.cgi?id=328018

--- Comment #2 from Jānis Elmeris <[hidden email]> ---
OK, now I'm doing it with Exiv2. Took an unmarked image and did the face
recognition. digiKam added a bunch of XMP info, including the people tag, which
can be seen in digiKam XMP metadata viewer, however specifically all
Xmp.mwg-rs(.Regions)* properties listed by Exiv2 are not displayed in digiKam.

Yes, I have the full view of all metadata switched on.

(I experienced some kind of problem with digiKam assigning face data to another
file B (with the same name but up one directory) not that I was actually
modifying (A), resulting in all the XMP metadata being attached to B while
displaying the face only in A, but not in B... But that is probably going to
another bug report once I understand better what exactly is happening.)

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=328018

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |veaceslav.munteanu90@gmail.
                   |                            |com

--- Comment #3 from Gilles Caulier <[hidden email]> ---
Veaceslav,

As you have work this summer on face tags metadata support, can you give some
light here.

Thanks in advance

Gilles Cauier

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=328018

--- Comment #4 from Gilles Caulier <[hidden email]> ---
Janis,

Please share with us some sample images where you cannot see any face tags in
XMP.

Also, do you use digiKam XMP sidecar feature ?

Gilles Caulier

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[Jānis Elmeris]

https://bugs.kde.org/show_bug.cgi?id=328018

--- Comment #5 from Jānis Elmeris <[hidden email]> ---
Created attachment 83770
  --> https://bugs.kde.org/attachment.cgi?id=83770&action=edit
A photo with XMP face tags that digiKam does not display

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=328018

--- Comment #6 from Gilles Caulier <[hidden email]> ---
Janis,

See my screenshot here :

http://www.flickr.com/photos/digikam/11068342554/

It's possible to show all XMP tags with some dirty patch in code. This need to
be polished to be published in production, but as you can see, your image with
M$ XMP face tags are properly displayed and imported here... Look especially
XMP viewer (:=)))...

Gilles Caulier

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[Alan Pater]

https://bugs.kde.org/show_bug.cgi?id=328018

--- Comment #7 from Alan Pater <[hidden email]> ---
Created attachment 83774
  --> https://bugs.kde.org/attachment.cgi?id=83774&action=edit
Sample image with Darwin Core XMP metadata

as per Gilles Cauliers  suggestion, I am posting this image here. DwC XMP
metatags also do not show up in digikam.

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=328018

--- Comment #8 from Gilles Caulier <[hidden email]> ---
Alan,

DwC XMp namespace can be show with my dirty patch, as you can see in my
screenshot :

http://www.flickr.com/photos/digikam/11068905305/

Gilles Caulier

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[Jānis Elmeris]

https://bugs.kde.org/show_bug.cgi?id=328018

--- Comment #9 from Jānis Elmeris <[hidden email]> ---
Yes, thank you! I have digiKam 3.3.0, so when there is an update, I suppose
I'll get the fix.

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=328018

--- Comment #10 from Gilles Caulier <[hidden email]> ---
Only future 4.0.0 release. Plan is here :

http://community.kde.org/Digikam/GSoC2013#Roadmap_and_Releases_Plan_including_all_GSoC-2013_works

Gilles Caulier

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=328018

--- Comment #11 from Gilles Caulier <[hidden email]> ---
Git commit 11a9ebe819c2705ea0e7a2d8d2f2ad05d1ac7c41 by Gilles Caulier.
Committed on 26/11/2013 at 23:14.
Pushed by cgilles into branch 'master'.

LibKexiv2 : if filter is an empty list, no filter is apply on tags list

M  +10   -4    libkexiv2/kexiv2.h
M  +14   -7    libkexiv2/kexiv2exif.cpp
M  +43   -21   libkexiv2/kexiv2iptc.cpp
M  +42   -21   libkexiv2/kexiv2xmp.cpp

http://commits.kde.org/libkexiv2/11a9ebe819c2705ea0e7a2d8d2f2ad05d1ac7c41

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=328018

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
   Version Fixed In|                            |4.0.0
         Resolution|---                         |FIXED
      Latest Commit|                            |http://commits.kde.org/digi
                   |                            |kam/48908ca573a2d9a3d51a90b
                   |                            |7a18941932e43c972

--- Comment #12 from Gilles Caulier <[hidden email]> ---
Git commit 48908ca573a2d9a3d51a90b7a18941932e43c972 by Gilles Caulier.
Committed on 27/11/2013 at 10:49.
Pushed by cgilles into branch 'master'.

Add new metadata tags filter option button with drop-down menu.
Add new option to not filter tags.
Rename "Full" tags filter as "Photograph"
Move tags search text field on top of metadata list view to optimize space
visible on list-view
Add new metadata tags tools option button with drop-down menu to group all
tools action and simplify GUI.
FIXED-IN: 4.0.0

M  +13   -7    libs/widgets/metadata/exifwidget.cpp
M  +12   -6    libs/widgets/metadata/iptcwidget.cpp
M  +12   -6    libs/widgets/metadata/makernotewidget.cpp
M  +20   -6    libs/widgets/metadata/metadatalistview.cpp
M  +96   -96   libs/widgets/metadata/metadatawidget.cpp
M  +9    -5    libs/widgets/metadata/metadatawidget.h
M  +13   -7    libs/widgets/metadata/xmpwidget.cpp

http://commits.kde.org/digikam/48908ca573a2d9a3d51a90b7a18941932e43c972

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=328018

--- Comment #13 from Gilles Caulier <[hidden email]> ---
Janis, Alan,

Done for 4.0.0 release :

http://www.flickr.com/photos/digikam/11082411096/

Gilles Caulier

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[Jānis Elmeris]

https://bugs.kde.org/show_bug.cgi?id=328018

--- Comment #14 from Jānis Elmeris <[hidden email]> ---
Yes, thank you!

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[Alan Pater]

https://bugs.kde.org/show_bug.cgi?id=328018

--- Comment #15 from Alan Pater <[hidden email]> ---
Created attachment 86192
  --> https://bugs.kde.org/attachment.cgi?id=86192&action=edit
DwC & MWG Regions XMP key descriptions

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[Alan Pater]

https://bugs.kde.org/show_bug.cgi?id=328018

--- Comment #16 from Alan Pater <[hidden email]> ---
Created attachment 86193
  --> https://bugs.kde.org/attachment.cgi?id=86193&action=edit
add "dwc" keys filter

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=328018

--- Comment #17 from Gilles Caulier <[hidden email]> ---
Git commit 4cc0d93d9cb9ddc5b6ffc2e155f66745e05643c8 by Gilles Caulier.
Committed on 16/06/2014 at 07:57.
Pushed by cgilles into branch 'master'.

apply patch #86192 from Alan Pater

M  +10   -0    libs/widgets/metadata/mdkeylistviewitem.cpp
M  +1    -1    libs/widgets/metadata/mdkeylistviewitem.h

http://commits.kde.org/digikam/4cc0d93d9cb9ddc5b6ffc2e155f66745e05643c8

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=328018

--- Comment #18 from Gilles Caulier <[hidden email]> ---
Git commit 3548d968e755facf4773b31aae2fe64cad1b83cf by Gilles Caulier.
Committed on 16/06/2014 at 07:59.
Pushed by cgilles into branch 'master'.

apply patch #86193 from Alan PAter

M  +1    -0    libkexiv2/kexiv2xmp.cpp

http://commits.kde.org/libkexiv2/3548d968e755facf4773b31aae2fe64cad1b83cf

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