[Bug 678485] New: opencv templatematch element improvements

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=678485
  GStreamer | gst-plugins-bad | 0.10.x

           Summary: opencv templatematch element improvements
    Classification: Platform
           Product: GStreamer
           Version: 0.10.x
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-bad
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: gnome at williammanley.net
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Created an attachment (id=216843)
 View: https://bugzilla.gnome.org/attachment.cgi?id=216843
 Review: https://bugzilla.gnome.org/review?bug=678485&attachment=216843

General tidy-up patch

We have made some changes to the templatematch element so it works better for
our application:
# Set caps to BGR rather than RGB.  OpenCV expects BGR whereas templatematch
has until now used GST_VIDEO_CAPS_RGB.  Previously templatematch had difficulty
matching anything colorful.
# Allow changing the template to match on-the-fly, even when the pipeline is
PLAYING
# Adjust the color of the match rectangle according to the match certainty
# We pass the video through unchanged if no template has been specified rather
than erroring out
# General tidyups

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