opencv install for ubuntu

环境：ubuntu 14.04 + OpenCV 2.2.0

• OpenCV源码下载：http://sourceforge.net/projects/opencvlibrary/
• 安装必要的库：sudo apt-get install cmake build-essential libgtk2.0-dev libavcodec-dev libavformat-dev libswscale-dev libjpeg62-dev libtiff4-dev  libjasper-dev

1. cmake - OpenCV2.2中省去了configure 文件，所以需要通过cmake来安装
2. build-essential - 根据字面意思“开发必备”
3. libavcodec-dev libavformat-dev libswscale-dev - ffmpeg的组成, libavcodec各种类型声音/图像编解码,libavformat各种音视频封装格式的生成和解析，libswscale用于视频场景比例缩放、色彩映射转换
4. libjpeg62-dev libtiff4-dev libjasper-dev - 图片格式支持

• 解压源码：tar -jxvf OpenCV-2.1.0.tar.bz2

 cd OpenCV-2.1.0/

• cmake .
• 编译OpenCV：make
• 安装OpenCV：sudo make install
• 更新动态链接库：sudo gedit /etc/ld.so.conf.d/opencv.conf

添加： /usr/local/lib 保存并运行：sudo ldconfig  进行配置

• 更新配置文件：sudo gedit /etc/bash.bashrc
  

在末尾添加：PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig

   export PKG_CONFIG_PATH

• 安装完毕。附上测试时保存的图像：

 opencv 添加 nonfree 库：

sudo add-apt-repository --yes ppa:xqms/opencv-nonfreesudo apt-get update sudo apt-get install libopencv-nonfree-dev

$ sudo apt-get install build-essential libgtk2.0-dev libavcodec-dev libavformat-dev libjpeg62-dev libtiff4-dev cmake libswscale-dev libjasper-dev$ sudo apt-get install libopencv-dev