https://cloud.tencent.com/developer/article/2047865
https://developer.aliyun.com/article/1624218
https://blog.csdn.net/TechNomad/article/details/153791984
https://vimsky.com/examples/usage/python-opencv-imencode-function.html
https://vimsky.com/examples/usage/python-opencv-imdecode-function.html
https://www.jb51.net/python/333633l35.htm
