ubuntu12中opencv安装，官方

操作之前请确保你的ubuntu系统的源是正确的，可以到http://wiki.ubuntu.org.cn/源列表#Precise.2812.04.29.E7.89.88.E6.9C.AC下察看对应你的版本的源，将/etc/apt/source.list替换为对应的源。执行sudoapt-get update

注意此方法适合opencv2.X

• 1.安装build-essential:GCC 4.4.x or later. This can be installedwith:

  sudo apt-get install build-essential 
  

• 安装CMake 
  

  sudo apt-get install cmake

• 安装一些列的库与组件：      方便操作，命令合并如下

• sudo apt-get install libgtk2.0-dev pkg-config python-dev  python-numpy libavcodec-dev libavformat-dev libswscale-dev libdc1394-22  libjpeg-dev libpng-dev libtiff-dev libjasper-dev（最后面的四个包是可选的）

• 获得OPENCV源码包

• Building OpenCV from SourceUsing CMake, Using the Command Line

  Create atemporary directory, which we denote as , where you want to put thegenerated Makefiles, project files as well the object files andoutput binaries.

  Enterthe and type

  cmake [] sourcedirectory>

• For example

  cd ~/opencv 

  mkdir release 

  cd release 

  cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..

• Enter the created temporary directory () and proceed with:

  makesudo make install

• sudoldconfig重新加载系统中使用的库，可以不用重启电脑就可用opencv库了
• 参阅：http://docs.opencv.org/trunk/doc/tutorials/introduction/linux_install/linux_install.html