python安装opencv库

1.更新pip

python -m pip install --upgrade pip

更新时若提示,“Could not install packages due to an EnvironmentError: [WinError 5] 拒绝访问”,则输入以下代码

python -m pip install --upgrade pip -i https://pypi.douban.com/simple --user

2.win+R输入cmd进入程序命令行,输入pip list查看,查看电脑中python环境已安装的库文件,是否有numpy库和matplotlib库,若没有这两个库,还需要安装这两个库;

pip install numpy
pip install matplotlib

3.在cmd中安装opencv库

pip install opencv-python

4.完毕

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