Gesture Music Player

Command music player (for now only VLC) with simple hand gestures. Supported commands:

• play
• pause
• next track
• previous track
• volume up (+10%)
• volume down (-10%)

How it works

• Get image from camera
• Convert to gray scale
• Blur the image reduce noise (details of the image are unimportant)
• Use threshold (low pass filter) to get black and white image
• Analyze the received shape to find convex hull/convexity defects
• If in debug mode display visuals
• Send some info to Tk control window

Requirements

• python3
  • Run pip intall -r requirements.txt
• Tkinter (ussually comes with Python or as a addtional package)

Tested on Linux and Windows

Credits and links

• Python bindings for VLC from: https://wiki.videolan.org/Python_bindings
• Python tool for controlling VLC https://github.com/amol9/vlc-ctrl
• Quora discussion: https://www.quora.com/What-is-the-easiest-way-to-recognise-gestures-in-OpenCV-using-Python
• Multithreading in TKinter: http://stackoverflow.com/questions/1198262/tkinter-locks-python-when-icon-loaded-and-tk-mainloop-in-a-thread
• OpenCV blog: http://vipulsharma20.blogspot.com/2015/03/gesture-recognition-using-opencv-python.html
• Another important tutorial about contours: http://docs.opencv.org/3.0-beta/doc/py_tutorials/py_imgproc/py_contours/py_contours_more_functions/py_contours_more_functions.html