#include <highgui.h>

 #include <cv.h>

 #pragma comment (lib,"opencv_calib3d231d.lib")

 #pragma comment (lib,"opencv_contrib231d.lib")

 #pragma comment (lib,"opencv_core231d.lib")

 #pragma comment (lib,"opencv_features2d231d.lib")

 #pragma comment (lib,"opencv_flann231d.lib")

 #pragma comment (lib,"opencv_gpu231d.lib")

 #pragma comment (lib,"opencv_haartraining_engined.lib")

 #pragma comment (lib,"opencv_highgui231d.lib")

 #pragma comment (lib,"opencv_imgproc231d.lib")

 #pragma comment (lib,"opencv_legacy231d.lib")

 #pragma comment (lib,"opencv_ml231d.lib")

 #pragma comment (lib,"opencv_objdetect231d.lib")

 #pragma comment (lib,"opencv_ts231d.lib")

 #pragma comment (lib,"opencv_video231d.lib")

 /*

  *《学习OpenCV》第四章第二题

  * 完成时间：0:38 3/11 星期一 2013

  */

 CvFont font; 

 /*

  * 鼠标事件回调函数

  */

 void my_mouse_callback(int event, int x, int y, int flags, void* param)

 {

     // 得到图像

     IplImage* image = (IplImage*) param;

     // 获取图像对应像素的颜色值

     CvScalar pixel_value;

     pixel_value = cvGet2D( image, x, y );

     // 构造要显示的文本

     char display_text[];

     sprintf( display_text, "(%d %d %d)", (int) pixel_value.val[],

         (int)pixel_value.val[], (int)pixel_value.val[] );

     switch(event)

     {

         // 鼠标左键点击事件

     case CV_EVENT_LBUTTONDOWN:

         printf("(%d, %d) --- (%f\t%f\t%f)\n", x, y, pixel_value.val[], pixel_value.val[], pixel_value.val[]);

         cvPutText( image, display_text, cvPoint(x, y), &font, pixel_value);

         break;

     }

 }

 int main()

 {

     IplImage* image = cvLoadImage("1.jpg", );

     cvInitFont(&font, CV_FONT_HERSHEY_PLAIN, 1.0f, 1.0f, , , );

     cvNamedWindow("image");

     cvSetMouseCallback( "image", my_mouse_callback, (void*)image );

     while()

     {

         cvShowImage("image", image);

         if(cvWaitKey() == ) break;

     }

     cvReleaseImage( &image );

     cvDestroyAllWindows();

     return ;

 }