ubuntu12.04安装openCV

装opencv之前ubuntu上需要安装的软件：

sudo apt-get install build-essential libgtk2.0-dev libavcodec-dev libavformat-dev libjpeg62-dev cmake libswscale-dev libjasper-dev

opencv源码，解压、进入，

运行 
cmake .
make(编译需要时间)
sudo make install
sudo ldconfig
编辑/etc/bash.bashrc

在末尾加上
PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig
export PKG_CONFIG_PATH