清华镜像源安装opencv

安装OpenCV可以使用清华镜像源来加速安装速度，步骤如下：

1. 打开终端，输入以下命令，添加清华镜像源：

sudo sh -c 'echo "deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ $(lsb_release -sc) main restricted universe multiverse" > /etc/apt/sources.list.d/tuna.list'
sudo sh -c 'echo "deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ $(lsb_release -sc)-updates main restricted universe multiverse" >> /etc/apt/sources.list.d/tuna.list'
sudo sh -c 'echo "deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ $(lsb_release -sc)-backports main restricted universe multiverse" >> /etc/apt/sources.list.d/tuna.list'
sudo sh -c 'echo "deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ $(lsb_release -sc)-security main restricted universe multiverse" >> /etc/apt/sources.list.d/tuna.list'

2. 更新软件包列表：

sudo apt-get update

3. 安装OpenCV：

sudo apt-get install libopencv-dev python-opencv

此时，OpenCV就已经安装成功了。