The pure python implementation of A Fast and Accurate Unconstrained Face Detector.
The model is training by the C++ Implemention, the python code only implement detection code and the speed is very slow.
cv2 numpy
BSD 3-Clause
https://github.com/wincle/NPD
(It's much faster than python implementisn, and support training)
http://www.cbsr.ia.ac.cn/users/scliao/projects/npdface/index.html