Ubuntu 12.04安装OpenCV

1. 先从sourceforge上下载OpenCV的源码

http://sourceforge.net/projects/opencvlibrary/files/opencv-unix/2.4.0/

2. 解压到任意目录

tar xvfj OpenCV-2.4.3.tar.bz2

3. 进入源码目录，创建release目录

cd OpenCV-2.4.3
mkdir release

4. 可以看到在OpenCV目录下，有个CMakeLists.txt文件，需要事先安装一些软件

sudo apt-get install build-essential cmake libgtk2.0-dev pkg-config python-dev python-numpy libavcodec-dev libavformat-dev libswscale-dev

5.  进入release目录，安装OpenCV是所有的文件都会被放到这个release目录下

cd release

6. cmake编译OpenCV源码，安装所有的lib文件都会被安装到/usr/local目录下

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

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