Opencv3.3在Ubuntu上安装

Reference：

http://docs.opencv.org/2.4/doc/tutorials/introduction/linux_install/linux_install.html

http://docs.opencv.org/3.0-beta/doc/tutorials/introduction/linux_install/linux_install.html

1.安装需要的packages

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.下载Opencv源代码安装包并解压（假设解压后的文件夹名为opencv）

https://sourceforge.net/projects/opencvlibrary/

3.进入目录building源代码

cd ~/opencv
mkdir release
cd release
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..

4.make

make -j8 # -j8 runs 8 jobs in parallel.
         # Change 8 to number of hardware threads available.
sudo make install