1、源码下载
github下载地址如下，选择最新版本4.11
https://github.com/opencv/opencv/releases/tag/4.11.0
https://github.com/opencv/opencv_contrib/releases/tag/4.11.0
2、安装依赖库
1）对图片编码格式的支持
sudo apt install zlib1g-dev libjpeg8-dev libwebp-dev libpng-dev libtiff-dev
2）对视频的支持（FFmpeg、V4L2、H.264等）
sudo apt install libdc1394-22-dev libavcodec-dev libavformat-dev libswscale-dev \
libtheora-dev libvorbis-dev libxvidcore-dev libx264-dev yasm \
libopencore-amrnb-dev libopencore-amrwb-dev libv4l-dev libxine2-dev
3）并行和线性代数库
sudo apt install libtbb-dev libeigen3-dev libfreetype6 libfreetype6-dev \
libharfbuz
