[digikam] [Bug 336650] New: Face Detection always(!) crashes after first and only successful run (Digikam 3.4.0 on Windows 7)

[Gunner]

https://bugs.kde.org/show_bug.cgi?id=336650

            Bug ID: 336650
           Summary: Face Detection always(!) crashes after first and only
                    successful run (Digikam 3.4.0 on Windows 7)
    Classification: Unclassified
           Product: digikam
           Version: unspecified
          Platform: MS Windows
                OS: MS Windows
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: Face Management
          Assignee: [hidden email]
          Reporter: [hidden email]

Digikam 3.4.0 on Windows 7 Professional 64-bit SP1 (patch level up-to-date)

Face Detection:
First initial run was successful and worked properly. Results were given.
But any further run crashes Digikam main program. Sometimes with the internal
Bugtracker shown (Backtrace is generated, but it always says that it is not
useful), sometimes not. Regardless to what options for Face Detection have been
chosen (tried most of the combinations).

Reproducible: Always




Operating System
    Windows 7 Professional 64-bit SP1
    Computer type: Desktop
        Antivirus
            Antivirus    Enabled
            Display Name    Sophos Anti-Virus
            Virus Signature Database    Up to date
        .NET Frameworks installed
            v4.5 Full
            v4.5 Client
            v3.5 SP1
            v3.0 SP2
            v2.0 SP2
        Internet Explorer
            Version    11.0.9600.17126
        Java
                Java Runtime Environment
                    Path    C:\Program Files (x86)\Java\jre7\bin\java.exe
                    Version    7.0
                    Update    60
                    Build    19
                Java Runtime Environment
                    Path    C:\Program Files\Java\jre7\bin\java.exe
                    Version    7.0
                    Update    60
                    Build    19

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=336650

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |[hidden email]
         Resolution|---                         |WAITINGFORINFO

--- Comment #1 from Gilles Caulier <[hidden email]> ---
Please try my unoficial windows installer updated to 4.1.0 :

https://drive.google.com/file/d/0B7yq-xFihT0_TTZTaXlUaExlaWs/edit?usp=sharing

Note : don't forget to delete libkface database file from your home directory
before to run digiKam. Mine under Windows7 is located here :

C:\Users\GILLES\AppData\Roaming\.kde\share\apps\libkface\database\recognition.db

Gilles Caulier

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=336650

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|unspecified                 |3.5.0

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[Gunner]

https://bugs.kde.org/show_bug.cgi?id=336650

--- Comment #2 from Gunner <[hidden email]> ---
Dear Gilles, Salut!

Can you, please, offer that - or any new up-to-date Windows Installer of
Digikam (full install). It should be mostly stable, because I cannot need a
crash of my system. I can just handle single program crashes. So, if you can
offer this, please feel free to do so. I would like to try face detection (if
it works now regularly). If you have any questions and topics I should pay
attention to, please, tell me about. I can try to serve you with comments and
data. But, please, note, I don't use all of digikam's features and tools. So,
if you want something specific being tested (on a Windows system), tell me.

Merci beaucoup pour ton aide, à bientôt,

Gunner

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=336650

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Version Fixed In|                            |4.2.0
         Resolution|WAITINGFORINFO              |FIXED

--- Comment #3 from Gilles Caulier <[hidden email]> ---
New pre-version of digiKam 4.2.0 windows installer is available here.

https://drive.google.com/file/d/0B7yq-xFihT0_TTZTaXlUaExlaWs/edit?usp=sharing

I recently released 4.1.0 installer which is available in offcial KDE download
repository, but this version crash immediately when face detection is started.

Crash appear when loading haar cascade XML files. There is no reason for
that...
The crash  is inside core of OpenCV. This is not a problem relevant of digiKam.
I'm sure, i found partially why :

Originally, OpenCV have been compiled using minimal options enabled, to
optimize install. This is the case of 4.1.0 where OpenCV 2.4.9 is installed as
shared lib.

Trying to find the problem using small libkface tests program, i finally tried
to recompile and install whole OpenCV with all options enabled. And all work
fine...

So to conclude : OpenCV is a big mess puzzle, providing around 30 optional
features. Playing with this options as side effect due to internal
dependencies. OpenCV is really weird here.

For me this problem is an important UPSTREAM dysfunction which must be reported
to OpenCV team.

I don't know about Linux and OSX, but there is a big chance that similar
problem will appear if OpenCV compilation options are enabled or disabled...

So to all packagers, please take a care about OpenCV packages.

Thanks in advance.

Gilles Caulier

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=336650

--- Comment #4 from Gilles Caulier <[hidden email]> ---
digiKam 4.2.0 running Face Detection under Windows 7 :

https://www.flickr.com/photos/digikam/14402474860/sizes/o/

Gilles Caulier

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[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=336650

[hidden email] changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|Faces-Management            |Faces-Detection

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