用opencv读取图像的每个像素值，鼠标点击获取每一个点，并显示像素

 

 

#include "cv.h"

#include "highgui.h"

#pragma comment(lib,"cxcore200.lib")

#pragma comment(lib,"highgui200.lib")

 using namespace cv;

void

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

{

    IplImage* img0, * img1;

    CvFont    font;

    uchar*    ptr;

    char      label[20];

 

    img0 = (IplImage*) param;

    img1 = cvCloneImage(img0);

 

    cvInitFont(&font, CV_FONT_HERSHEY_PLAIN, .8, .8, 0, 1, 8);

 

    if (event == CV_EVENT_LBUTTONDOWN)