conda安装opencv opencv-contrib-python opencv-python

pip install -i https://pypi.tuna.tsinghua.edu.cn/simple opencv-contrib-python
pip install -i https://pypi.tuna.tsinghua.edu.cn/simple opencv-python

conda activate vm #激活
conda install -c https://conda.anaconda.org/menpo opencv3 #安装opencv3
#如果要安装opencv4将opencv3改成如下命令
conda install -c https://conda.anaconda.org/menpo opencv #安装最新版opencv4
#也可通过conda search -c https://conda.anaconda.org/menpo opencv*来搜索所有opencv版本