使用镜像源安装opencv

使用镜像源安装OpenCV的步骤如下：
1. 打开终端或命令提示符，输入以下命令以更新软件包列表：

sudo apt-get update

2. 安装OpenCV的依赖项：

sudo apt-get install build-essential cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev

3. 安装图像和视频I/O库：

sudo apt-get install libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev libeigen3-dev libtheora-dev libvorbis-dev libxvidcore-dev libx264-dev sphinx-common libtbb-dev yasm libfaac-dev libopencore-amrnb-dev libopencore-amrwb-dev libopenexr-dev libgstreamer-plugins-base1.0-dev libavutil-dev libavfilter-dev libavresample-dev

4. 下载OpenCV源代码：

git clone https://github.com/opencv/opencv.git

5. 进入OpenCV目录并创建一个名为build的新目录：

cd opencv
mkdir build
cd build

6. 使用cmake生成Makefile：

cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..

7. 编译OpenCV：

make -j4

8. 安装OpenCV：

sudo make install

9. 配置OpenCV库路径：

sudo /bin/bash -c 'echo "/usr/local/lib" > /etc/ld.so.conf.d/opencv.conf'
sudo ldconfig