参考
1.
https://blog.csdn.net/qq_37757924/article/details/94721193
2.
https://blog.csdn.net/chaipp0607/article/details/79935302?utm_source=blogxgwz4
3.
https://thume.ca/projects/2012/11/04/simple-accurate-eye-center-tracking-in-opencv/
4.
https://github.com/trishume/eyeLike