https://github.com/jennasys/facetrack

OpenCV face tracking on the Rapsberry Pi using Python
https://github.com/jennasys/facetrack

Last synced: about 2 months ago
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OpenCV face tracking on the Rapsberry Pi using Python

• Host: GitHub
• URL: https://github.com/jennasys/facetrack
• Owner: JennaSys
• Created: 2014-12-28T22:46:10.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2018-08-19T23:30:46.000Z (over 6 years ago)
• Last Synced: 2024-04-03T04:02:52.228Z (9 months ago)
• Language: Python
• Homepage:
• Size: 255 KB
• Stars: 20
• Watchers: 6
• Forks: 6
• Open Issues: 2
• Metadata Files:
  • Readme: README.md

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README

        
facetrack

=========

OpenCV face tracking on the Raspberry Pi using Python

```

sudo apt-get install python-opencv

```

Be sure to enable the camera on the Raspberry pi and add bcm2835-v4l2 to /etc/modules

Core code borrowed from [Pan / Tilt face tracking with the raspberry pi](http://instructables.com/id/Pan-Tilt-face-tracking-with-the-raspberry-pi "instructables")

If not preinstalled with Raspbian, you can use the following to install the PIGPIO library:

```

wget abyz.co.uk/rpi/pigpio/pigpio.zip

unzip pigpio.zip

cd PIGPIO

make

sudo make install

#setup pigpiod to auto load by adding a line to crontab

sudo crontab -e

@reboot  /usr/local/bin/pigpiod

```

PIGPIO docs are [here](http://abyz.me.uk/rpi/pigpio/python.html) if you need them.

Additional Info

---------------

I replaced the calls to ServoBlaster with ~~RPIO~~ PIGPIO just to keep everything a little more in the Python realm codewise.  The RPIO library has had a history of not keeping up with hardware updates so I switched over to pigpio which is now included as part of the default raspian installation.

RPi.GPIO doesn't work for this project because it's implementation of PWM is software based, and the resulting signal is too erratic to control the servos smoothly enough for OpenCV tracking.  RPIO (and ServoBlaster) uses DMA and while not a full hardware implementation, it removes enough servo jitter to be usable.