https://bugs.kde.org/show_bug.cgi?id=384401

            Bug ID: 384401
           Summary: Various recognition algorithm improvements for face
                    detection
           Product: digikam
           Version: 5.6.0
          Platform: Appimage
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: Faces-Recognition
          Assignee: digikam-bugs-n...@kde.org
          Reporter: jens-bugs.kde....@spamfreemail.de
  Target Milestone: ---

Here are several things I would very much like improved with the current faces
area in Digikam. 

1. The face detection (i.e. "this is a face") works reasonably well but fails
miserably for rotated faces (even 90° and 180°). Please make it detect rotated
faces.

2. The faces detection algorithm does not remember that I deleted an area which
it (wrongly) detected as containing a face. If the image is processed again, it
should not offer this area as a face again.

3. The face *regognition* (i.e. "this is Tim") should respect that the same
face cannot appear in an image multiple times (or rather, that this is a rare
corner case that should be excluded, e.g. when handling collages) and make
according suggestions.

4. The face recognition database should update its guesses ("unconfirmed"
faces) automatically whenever I update a face tag, so that when browsing
through the image collection and correcting face tags subsequent very similar
images which previously also had the same (incorrect) face tag are updated
automatically.

Thank you!

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