PIP opencv-python directly into docker:

pip install opencv-python

When importing cv2 again, an error will be returned:

ImportError: libgthread-2.0.so.0: cannot open shared object file: No such file or directory

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pip uninstall opencv-python

To install it, use the following command:

pip install opencv-python-headless

【 reference 】

https://blog.csdn.net/Max_ZhangJF/article/details/108920050 https://github.com/Korea-Health-Datathon/KHD2020/issues/78