[digiKam-users] Fw: Face recognition

[Maik Qualmann]

Read this bug report, it explains the currently poorer detection.

https://bugs.kde.org/show_bug.cgi?id=420128

Maik

Am Dienstag, 19. Mai 2020, 18:21:48 CEST schrieb Ronald Orenstein:
> I posted the query below on Friday, but have not heard from anyone on this
> subject.  I am resubmitting it in case it did not reach the list the first
> time.  I would really appreciate some help on this - I apologize for being
> a rank beginner, and please advise me if this is not an appropriate request
> for this list.
> 
> Ronald Orenstein
> 1825 Shady Creek Court
> Mississauga, ON L5L 3W2
> Canada
> ronorenstein.blogspot.com
> ronorensteinwriter.blogspot.com
> 
> 
> ----- Forwarded Message -----
> 
> From: Ronald Orenstein <ron.orenstein at rogers.com>
> To: digiKam - Home Manage your photographs as a professional with the power
> of open source <digikam-users at kde.org> Sent: Friday, May 15, 2020, 11:48:02
> p.m. EDT
> Subject: Face recognition
> 
> 
> I have had some excellent online help from a list member in response to my
> last post, but I wanted to bring my further query to the wider list and the
> developers.
> 
> I was running v. 6.4 for mac, and had used it to tag a large number of
> faces, many of which I identified manually.  Following advice, I updated to
> version 7.0 for mac, which I realize uses a different algorithm for face
> recognition.  As I did not want to have to retag hundreds of images, I did
> not delete tags made under the earlier version, but rescanned a few folders
> with the setting on 'scan again and merge results' and 'recognize faces'. 
> The new scan, however, placed all newly-scanned files under 'unknown'.  I
> retagged a large number of faces, mostly showing my wife, and tried a
> further scan on the same settings (but using the scan command under
> tools>maintenance) expecting that it might now learn from these
> newly-tagged files and recognize the faces of my wife at least. 
> 
> Unfortunately, the program crashed before completing the scan, but not
> before adding a few thousand new faces.  However, once again almost all of
> these, including my wife's face, were placed under 'unknown' rather than
> being recognized; the few placed under 'unconfirmed' were wrongly
> identified.  Rescanning individual files had no effect.  This makes me
> wonder if the recognition feature is working (or if I am doing something
> wrong).
> 
> Further, under both 6,4 and 7.0 the scan is failing to detect many faces in
> photos with more than one person even though these are (as far as I can
> tell) every bit as large and clearly visible as the ones it does detect.  I
> tried rescanning the same files repeatedly with different sensitivity
> settings, from 0-100%, but the results were always the same.  Is there
> anything I can do about this short of manually adding faces to thousands of
> files?
> 
> Thanks for assisting me with this.
> 
> Ronald Orenstein
> 1825 Shady Creek Court
> Mississauga, ON L5L 3W2
> Canada
> ronorenstein.blogspot.com
> ronorensteinwriter.blogspot.com