1下载源码

下载源码

https://github.com/opencv/opencv/releases/tag/3.4.9

下载扩展源码

https://github.com/opencv/opencv_contrib/releases/tag/3.4.9

2安装依赖

sudo apt-get update
  
sudo apt-get install -y build-essential cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
sudo apt-get install -y libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev
sudo apt-get install -y python2.7-dev python3.6-dev python-dev python-numpy python3-numpy
python3 -m pip install --upgrade pip
  
sudo apt-get install -y libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev
#sudo apt-get install -y libjasper1 libjasper-dev
  
sudo apt-get install -y libdc1394-22-dev
sudo apt-get install -y libv4l-dev v4l-utils qv4l2
sudo apt-get install -y curl
  
#后面用到
sudo apt-get install -y cmake-gui