Thsi is the documentation for the gstreamer plugin gst-handdetect.

The plugin works with OpenCV to detect natural hand gestures, its hand gesture detection is achieved through HAAR classifier training which results in classifier files in xml formats.

======
======

The structure of this plugin is organised as following:

/GstHanddetect
   /src
      gsthanddetect.c
      gsthanddetect.h
      /xml
         fist.xml
         palm.xml (to be added)
   /examples
      Makefile.am
      main.c (an app example to demonstrate using hand gestures (fist) 
              to manipulate the media playbacks and volumes)
   configure.ac
   Makefile.am
   README

======
======

The manipulation of media playbacks and volumes are designed as following:
1. the frame will draw a red circle over the hand gestures (fist)
2. given the positions and movements the gestures make, the manipulations are defined as:
   * the horizontal positions of fist (known as x coordinate) in the frame 
      chanage the media's playback position 
      [ current media position = x / frame width * media duration ]
   * the vertical positions of fist (know as y coordinates) in the frame
      change the media playback's volumes
      [ current volume = y / frame height * 10 ]
   * if palms detected, the playback stops, showing fist gesture to resume playing

======
======

PLUGIN INSTALL
following regular gstreamer plugin installation procedures to make and install the gst-handdetect plugin.