OpenCV Hello world

###1. 安装 opencv

####1) 安装依赖

sudo apt-get install libcv-dev libcvaux-dev libhighgui-dev

####2) 下载源码编译安装下载列表

cd ~/opencv
mkdir release
cd release
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..
make
sudo make install

###2.测试 HelloWorld

####1) eclipse设置

Project –> Properties -> C/C++ Build -> Settings -> GCC C++ Compiler -> Includes , 添加opencv目录: /usr/include/opencv

setting

####2) eclipse设置

Project –> Properties -> C/C++ Build -> Settings -> GCC C++ Linker -> Libraries, 添加 lib:opencv_core opencv_imgproc opencv_highgui opencv_ml opencv_video opencv_features2d opencv_calib3d opencv_objdetect opencv_contrib opencv_legacy opencv_flann

setting

####3) 测试代码

#include <cv.h>
#include <highgui.h>
using namespace cv;
int main( int argc, char** argv )
{
  Mat image;
  image = imread( argv[1], 1 );
  if( argc != 2 || !image.data )
	{
	  printf( "No image data \n" );
	  return -1;
	}
  namedWindow( "Display Image", CV_WINDOW_AUTOSIZE );
  imshow( "Display Image", image );
  waitKey(0);
  return 0;
}

####4) 效果图片：

result