1.先安装一些支持包
[compiler] sudo apt-get install build-essential
[required] sudo apt-get install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
[optional] sudo apt-get install python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev
2.下载源码https://github.com/opencv/opencv/tree/3.4.0
cd ~/<my_working_directory>
git clone https://github.com/opencv/opencv.git
3.Building OpenCV from Source Using CMake
cd /opt/opencv
sudo mkdir build #新建一个名字为build的文件夹
cd build #切换到build文件夹
sudo cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/opt/opencv ..
#亲测，这里的/opt/opencv ..格式一定要对，此为opencv源码及cmake文件所在的地方
之后build：
make -j4 #run 4 jobs in parallel 并行运行4个工作
安装库：
sudo make install
之后我们用codeblocks IDE进行测试：以下用图片进行配置的展示：