树莓派4 安装opencv-python

安装地址：

http://www.freesion.com/article/4543304914/

 

树莓派4B+ 安装opencv-python 环境错误

/usr/local/lib/python3.7/dist-packages/cv2/cv2.cpython-37m-arm-linux-gnueabihf.so: undefined symbol: __atomic_fetch_add_8

bug问题与解决网址：https://github.com/piwheels/packages/issues/59

 

• 树莓派thonny程序启动

LD_PRELOAD=/usr/lib/arm-linux-gnueabihf/libatomic.so.1 thonny &

• 4.1.1.26 卸载这个版本bug

• pip3 uninstall opencv-contrib-python
  pip3 install opencv-contrib-python==4.1.0.25

STM 32序列号方案 https://blog.csdn.net/duanfeiteng0814/article/details/53067600

来源：oschina

链接：https://my.oschina.net/wjgood/blog/3213328