1、安装dlib
https://stackoverflow.com/questions/41912372/dlib-installation-on-windows-10
2、安装face_recongnition
pip install face_recognition
https://github.com/ageitgey/face_recognition/issues/175#issue-257710508
3、命令行
face_detection ${imgpath}
输出图片中人脸坐标
4、https://face-recognition.readthedocs.io/en/latest/face_recognition.html