[Bug 753994] New: OpenCV faceblur does not work with OpenCV newer than 2.4.10

GStreamer (GNOME Bugzilla) bugzilla at gnome.org
Sun Aug 23 09:28:59 PDT 2015


https://bugzilla.gnome.org/show_bug.cgi?id=753994

            Bug ID: 753994
           Summary: OpenCV faceblur does not work with OpenCV newer than
                    2.4.10
    Classification: Platform
           Product: GStreamer
           Version: git master
                OS: All
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-bad
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: vchipirras6 at gmail.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

$ gst-launch-1.0 autovideosrc ! videoconvert ! faceblur ! videoconvert !
autovideosink

When I run this, the face blurred is not detected in the camera.
It is due to the new structure of the classifier "CascadeClassifier" that
opencv used in versions newer than 2.4.10.

"gstfaceblur.c" should be transform C ++ language and to use the "load" method
to load the old and new structure of the classifier.

Previously the classifier was:
<haarcascade_frontalface_default type_id="opencv-haar-classifier">
Now it is:
<cascade type_id="opencv-cascade-classifier"><stageType>BOOST</stageType>

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