Opencv

https://docs.opencv.org/

$ sudo apt-get install python3-opencv

$ sudo apt-get install python-opencv

 https://www.cnblogs.com/long5683/p/13165972.html

https://juejin.cn/post/6844903905264926728

https://www.jianshu.com/p/f4ca1039eadf?from=groupmessage

交叉编译并移植opencv到arm板遇到的坑

https://blog.csdn.net/houge101/article/details/79433503