python安装opencv

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安装opencv

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# opencv-python 和 opencv-contrib-python只能安装一个，后者带有扩展包，建议直接安后者
pip install opencv-python

# 安装opencv-contrib-python前，要先卸载opencv-python
pip uninstall opencv-python
pip install opencv-contrib-python

更新opencv

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pip install --upgrade opencv-python