[Digikam-devel] [Bug 262212] Face recognition doesn't work

[Nigel Tummers]

https://bugs.kde.org/show_bug.cgi?id=262212


Nigel Tummers <nigel at snowwie.nl> changed:

           What    |Removed                     |Added
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                 CC|                            |nigel at snowwie.nl




--- Comment #10 from Nigel Tummers <nigel snowwie nl>  2011-01-28 14:33:17 ---
I think i've got the same issues. Using latest kde & digikam svn builds with
OpenCV 2.2.0-2 from arch repository.

Face detection works and faces are listed in People/Unknown.

But when I try to "Scan collection for faces" -> "Recognise faces" it completes
in ~2 seconds (100 images) 
The thumbnail in the progress bar shows shows just a 'no image' thumbnail.

I get the following error (for each image) in the terminal:

OpenCV Error: Assertion failed (ssize.area() > 0) in resize, file
/build/src/OpenCV-2.2.0/modules/imgproc/src/imgwarp.cpp, line 1391
digikam(1061)/KFACE: cv::Exception:
/build/src/OpenCV-2.2.0/modules/imgproc/src/imgwarp.cpp:1391: error: (-215)
ssize.area() > 0 in function resize

QImage::scaled: Image is a null image

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