准备工作，Ubuntu下安装Eclipse和CDT。
下面主要说一下集成OpenCV：
1：安装OpenCV 可以看OpenCv的安装，默认的安装目录是/usr/local/include
2：新建一个C++项目。首先右键点击新建的项目，在项目属性的C++ Build->Settings，这里要对编译器参数进行设置。
在GCC C++ Compiler->Directories的include paths中新增一个/usr/local/include/opencv；和/usr/local/include/opencv2
3:终端输入
pkg-config --libs opencv
我的显示如下：
/usr/local/lib/libopencv_calib3d.so
/usr/local/lib/libopencv_contrib.so
/usr/local/lib/libopencv_core.so
/usr/local/lib/libopencv_features2d.so
/usr/local/lib/libopencv_flann.so
/usr/local/lib/libopencv_gpu.so
/usr/local/lib/libopencv_highgui.so
/usr/local/lib/libopencv_imgproc.so
/usr/local/lib/libopencv_legacy.so
/usr/local/lib/libopencv_ml.so
/usr/local/lib/libopencv_nonfree.so
/usr/local/lib/libopencv_objdetect.so
/usr/local/lib/libopencv_photo.so
/usr/local/lib/libopencv_stitching.so
/usr/local/lib/libopencv_ts.so
/usr/local/lib/libopencv_video.so
/usr/local/lib/libopencv_videostab.so
这样就意味着：
找到 GCC C++ Linker，在右侧 First in Library search path (-L) 中加入这些库
注意：
在eclipse中添加库时，usr/local/lib中是libopencv_***，在eclipse里添加为opencv_***，大小写敏感。