[digikam] [Bug 365321] New: Git master:2016-07-10: Scan and recignize faces does not work.

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https://bugs.kde.org/show_bug.cgi?id=365321

            Bug ID: 365321
           Summary: Git master:2016-07-10: Scan and recignize faces does
                    not work.
           Product: digikam
           Version: 5.0.0
          Platform: Compiled Sources
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: Faces-Management
          Assignee: [hidden email]
          Reporter: [hidden email]

When selecting scan and recognize faces in collection, no faces are detected.
When just detecting faces, the detector finds faces. When just recognizing
faces, the face recognizer works, but when used together it just skips all the
images.



Reproducible: Always

Steps to Reproduce:
1.Select scan and recognise faces in collection.
2.Select collection to scan
3.Press OK

Actual Results:  
No faces detected, process finishes quickly.

Expected Results:  
Faces found and recognized.

This is a bug that was discovered while investigating a segfault in the
scanner.

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                 CC|                            |[hidden email]
            Summary|Git master:2016-07-10: Scan |Scan + recognize faces does
                   |and recignize faces does    |not work.
                   |not work.                   |

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--- Comment #1 from [hidden email] ---
*** Bug 271679 has been marked as a duplicate of this bug. ***

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--- Comment #2 from [hidden email] ---
*** Bug 321297 has been marked as a duplicate of this bug. ***

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--- Comment #3 from Pal Körössy <[hidden email]> ---
For me it was the same with digikam 4.6 until I realized that both libopencv2_4
and libopencv3 was installed. After removing libopencv3_1 face detection works
well.

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           What    |Removed                     |Added
----------------------------------------------------------------------------
   Version Fixed In|                            |5.2.0
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED

--- Comment #4 from [hidden email] ---
Great to see this issue with both OpenCV2 and 3

Typically both version can be installed at the same time of course. After all
it's a shared libray.

But opencv is a big mess. I'm not surprised about run time incompatibility with
version 2 and 3. I recommend to report this problem to OpenCV team.

Gilles Caulier

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Evert Vorster <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |VERIFIED
         Resolution|FIXED                       |REMIND

--- Comment #5 from Evert Vorster <[hidden email]> ---
On Arch Linux I only have OpenCV v3 installed, and this is where I am seeing
the issue.
So, the fix proposed does not work for me, and I am opening the ticket again.

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--- Comment #6 from Evert Vorster <[hidden email]> ---
Just want to add.

Scanning for faces works fine, and recognizing faces works fine, but when the
"scan and recognize" faces button is clicked, nothing happens, no faces are
scanned, and none recognized.

-Evert-

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           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|VERIFIED                    |UNCONFIRMED
   Version Fixed In|5.2.0                       |
         Resolution|REMIND                      |---

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           What    |Removed                     |Added
----------------------------------------------------------------------------
   Version Fixed In|                            |5.2.0
         Resolution|---                         |FIXED
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #7 from [hidden email] ---
Since i fixed bugs #366557 and #335013, this dysfunction is not reproducible.

Here i use OpenCV 3.1.0 with Mageia 6, and the detection + recognition option
work as expected. I do not stop immediately as with previous version.

The fix will be published with next 5.2.0 release.

I close this file now.

Gilles Caulier

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