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1.安装以下依赖项（不可缺少）
sudo apt-get install build-essential
sudo apt-get install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
sudo apt-get install python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev
2.创建一个目录，进行源码的下载；
mkdir ~/opencv_code
cd opencv_code
git clone https://github.com/Itseez/opencv.git //获取的Opencv
git clone https://github.com/Itseez/opencv_contrib.git //获取的opencv_contrib
3.编译安装
cd opencv_code/opencv
mkdir build
cd build
cmake
-D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local ..
make
sudo make install
4.出现上图，说明安装成功，记住有错误的话就要重新安装。。 | 
转播
