Getting face recognition to work on Raspberry Pi with Pi Cam

1. Buy a pi and a camboard module.

2. Install Raspbian.

3. Run

$ sudo raspi-config

to turn on the camera module

4. Follow the instruction here to compile and install opencv.

http://robertcastle.com/2014/02/installing-opencv-on-a-raspberry-pi/

5. Install the UV4L driver to make /dev/video0 available as a virtual device to your pi cam.

http://www.linux-projects.org/modules/sections/index.php?op=viewarticle&artid=14

6. Reconfig the U4L driver so that there is no annoying preview coming up.

$ sudo pkill uv4l
$ sudo uv4l --driver raspicam --auto-video_nr --width 640 --height 480 --encoding jpeg --nopreview

7. Download

https://github.com/berak/opencv_smallfry

8.

$ startx
$ cd opencv_smallfry
$ python facerec_online.py your_folder_to_store_training_pics /usr/local/share/OpenCV/haarcascades/haarcascade_frontalface_default.xml

9. Enjoy!