[digiKam-users] Crash during facial recognition

[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: 

 

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