git clone https://github.com/Ianpanda/Face-Detection.git
python face_detection.py -i demo_images/00.jpg for image detection mode, OR
python face_detection.py -i [video_path] -o [output_path (optional)] for video detection mode.

usage: face_detection.py [-h] [-i INPUT] [-o OUTPUT]
                         [-d {haar,dlib,mtcnn,all}] [-s SPEED] [-v {y,n}]

detect faces based on haar or dlib

optional arguments:
  -h, --help            show this help message and exit
  -i INPUT, --input INPUT
                        video or image to detect
  -o OUTPUT, --output OUTPUT
                        video or image result
  -d {haar,dlib,mtcnn,all}, --detector {haar,dlib,mtcnn,all}
                        choose your detector
  -s SPEED, --speed SPEED
                        spped up video result if need
  -v {y,n}, --visualize {y,n}
                        visualize the detect result immediately

demo：python face_detection.py -i file_in -o file_out -d detector
1.-i:video or image to detect
2.-o:result
3.-d:choose your detector
4.-s:spped up video result if need
5.-v:visualize the detect result immediately