[digiKam-users] Crash during facial recognition

[Maik Qualmann]

DigiKam-7.2.0-Beta1 fixes problems related to MySQL and the face database. 
First you should then rebuild the training data. Run Maintenance Tool-> Face 
Recognition section-> [x] Rebuild Training Database.

Maik

Am Samstag, 10. Oktober 2020, 19:07:15 CEST schrieben Sie:
> Well, we already have various bug reports on this. We're working on it. I
> understand correctly that face detection works, it crashes in face
> recognition? Try the digiKam-7.2.0-beta1 from here:
> 
> https://files.kde.org/digikam/
> 
> Maik
> 
> Am Samstag, 10. Oktober 2020, 18:58:28 CEST schrieb bryan at gillson.net:
> > I am unable to run facial recognition without Digikam crashing. Is this a
> > common problem, and are there known issues or workarounds for this?
> > 
> > 
> > 
> > I'm running Digikam 7.1 on Windows 10, with a database of about 100,000
> > pictures. All databases are set to MySQL Server (experimental), which
> > connects to a Synology NAS running MariaDB 10.3.21 over the network. This
> > is a bit slow, but my wife and I both access the database from separate
> > PCs and need to share tags.
> > 
> > 
> > 
> > To run the recognition, I go to the People tab, choose Workflow -> Detect
> > faces, Search In -> Whole albums collection. When this completed, I
> > expected to manually tag a variety of faces in the Unknown tag and then
> > repeat the process with Workflow -> Recognize faces. I assume this would
> > reclassify most of the pictures from Unknown to the proper name tag,
> > except for those that end up in Unconfirmed and need manual tagging.
> > 
> > 
> > 
> > Instead, Digikam adds about 800 faces to Unknown and then crashes (see the
> > Windows EventVwr Application Error below). When I repeat the process with
> > Recognize Faces, very few faces get recognized and I find myself mostly
> > manually tagging. Faces are primarily friends and family over a 20 year
> > period, so I have tagged people at points of life from babies through late
> > teens.
> > 
> > 
> > 
> > Questions:
> > 
> > 1.	How can I stop the crashing? Is there a better log I could upload?
> > 2.	Is my workflow (Detect faces first, then Recognize Faces second)
> > correct?
> > 3.	Am I correct in using varying ages for training data (the initial
> > manual tags), or should I only pick one age and let the AI sort it out?
> > 
> > 
> > 
> > Thank you! (App crash log is below)
> > 
> > 
> > 
> > 
> > 
> > Log Name:      Application
> > 
> > Source:        Application Error
> > 
> > Date:          10/9/2020 4:21:01 PM
> > 
> > Event ID:      1000
> > 
> > Task Category: (100)
> > 
> > Level:         Error
> > 
> > Keywords:      Classic
> > 
> > User:          N/A
> > 
> > Computer:      PC-VM
> > 
> > Description:
> > 
> > Faulting application name: digikam.exe, version: 0.0.0.0, time stamp:
> > 0x00000000
> > 
> > Faulting module name: libstdc++-6.dll, version: 0.0.0.0, time stamp:
> > 0x00000000
> > 
> > Exception code: 0x40000015
> > 
> > Fault offset: 0x000000000002070a
> > 
> > Faulting process id: 0x2ddc
> > 
> > Faulting application start time: 0x01d69c00905c92da
> > 
> > Faulting application path: C:\Program Files\digiKam\digikam.exe
> > 
> > Faulting module path: C:\Program Files\digiKam\libstdc++-6.dll
> > 
> > Report Id: 762bb3d4-ed93-4e35-8912-ab928529a5c2
> > 
> > Faulting package full name:
> > 
> > Faulting package-relative application ID: