ubuntu下eclipse、cdt的安装，及配置opencv，openni

1 安装eclipse

sudo apt-get install eclipse

2 安装cdt插件
       1、启动eclipse，
      2、选择Help->Install New Software...，在Work with的框框下复制下面的地址：  http://download.eclipse.org/releases/galileo
      3、选择Collaboration->Mylyn Bridge: C/C++ Development，安装，重启eclipse。
      4、同上述2、3，选择Programming Languages->Eclipse C/C++ Development，都选上吧，现在硬盘不贵的。重启eclipse，试试吧，有tutorial的。

3 配置opencv

（1）右键工程属性-->c/c++ build-->Settings

编译器选项中选择目录，GCC C++ Compiler-->directorys-->include paths

/usr/include/opencv-2.3.1
/usr/include/opencv-2.3.1/opencv
/usr/include/opencv-2.3.1/opencv2
/usr/include/ni

连接器中添加：GCC C++ links-->libraries

加入库

OpenNI

opencv_core
opencv_highgui
opencv_calib3d
opencv_contrib
opencv_core
opencv_features2d
opencv_flann
opencv_gpu
opencv_highgui
opencv_imgproc
opencv_legacy
opencv_ml
opencv_objdetect
opencv_video

添加库目录

/usr/lib