[digiKam-users] Image recognition

[Thomas D]

Hello,

I was not aware that I had to rebuild the training database.
I have now done a maintenance --> Clean & update face db.
This seems like something that will take many hours on my collection.
I notice that DK seems to be only utilizing a single CPU core. I have 6
cores. Is retraining not a parallelizable task? Or is there just a checkbox
I need to check in order to have it utilize all cores?



Den tir. 6. apr. 2021 kl. 22.53 skrev Hubert Zillner <
hubert.zillner at zillners.de>:

> Hi Maik and others,
> thank you for the suggestion.
> I have run the rebuild of the training data ( tools/maintenance/detect and
> recognize faces [Clear an rebuild all training data]) which took a lot of
> time (13,5 hours).
> After this task I see in the people tag "unknown" many many faces and if I
> click to one face the preset of the field is "Who is this?" and I can
> assign
> the name manually out of the people list. When I click another face the
> name
> of the previous face is preset.
> My expectation is however, that after a recognition run all the recognized
> faces are in the people tag "unconfirmed" but there is nothing at all  in
> this tag.
> Also my expectation is, that I can choose a folder within an album (right
> mouse) and activate "scan for faces" to get all recognized faces in
> "unconfirmed" which I only have to confirm afterwards manually.
> So the question is, do I apply this function wrongly, or rather what should
> be the result of the whole process?
> By the way my operating system is Windows 10.
> Regards
> Hubert
>
> -----Ursprüngliche Nachricht-----
> Von: Digikam-users <digikam-users-bounces at kde.org> Im Auftrag von Maik
> Qualmann
> Gesendet: Dienstag, 6. April 2021 07:53
> An: digiKam - Home Manage your photographs as a professional with the power
> of open source <digikam-users at kde.org>
> Betreff: Re: [digiKam-users] Image recognition
>
> It is important that you rebuild the training database with digiKam-7.2.0.
> To do this, select the checkbox for rebuilding the training data in the
> face
> detection/recognition section of the maintenance tool. A special album
> selection is not necessary, all currently confirmed faces are used. The
> face
> recognition works best with face rectangles, which were also detected by
> digiKam. Face rectangles from other programs, e.g. Picasa or manually drawn
> face rectangles, work poorly. The current face recognition can deliver over
> 90% correct results.
>
> Maik
>
> Am Montag, 5. April 2021, 22:41:57 CEST schrieb Hubert Zillner:
> > Hello,
> >
> >
> >
> > I would appreciate an advice how to use the face recognition in 7.2.0.
> >
> > The face detection runs successfully and I have many unknown faces in
> > the People Tag "Unknown". When I try to run the face recognition,
> > there is no item in "Unconfirmed".
> >
> > Until know I have to assign the faces manually, but this should work
> > automatically in most cases, as far as I understood this functionality.
> >
> >
> >
> > Thanks and regards
> >
> > Hubert Zillner
>
>
>
>
>
>
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