opencv （opencv3.X） IplImage相互转换mat

opencv3.x之前的版本，mat有构造函数 Mat(const IplImage* img, bool copyData=false);
IplImage转mat可以直接用由

extern  IplImage * plpliamge；//plpliamge已创建
 cv::Mat matImage( IplImage, 0  ): //第二个参数表示不进行像素数据copy；

实现IplImage转为mat

但是在opencv3.x中，Mat(const IplImage* img, bool copyData=false);构造函数取消了，所以只能另辟蹊径啦！下面是在3.x中可行办法：

1. IplImage to cv::Mat example program

 #include "opencv2/highgui/highgui.hpp" 
#include <iostream> 
#include <stdio.h> 
using namespace std;  
using namespace cv;  
int main(int argc,  
char *argv[]  
  )  
 {  
///Loading image to IplImage 
 IplImage *img=cvLoadImage(argv[1]);  
 cvShowImage("Ipl",img);  
///converting IplImage to cv::Mat 
 Mat image=cvarrToMat(img);  
 imshow("Mat",image);  
 waitKey();  
return 0;  
 }  

2. cv::Mat to IplImage example program

 #include "opencv2/highgui/highgui.hpp" 
#include <iostream> 
#include <stdio.h> 
using namespace std;  
using namespace cv;  
int main(int argc,  
char *argv[]  
  )  
 {  
///Reading Image to cv::Mat 
 Mat image =imread(argv[1],1);  
///Converting Mat to IplImage 
 IplImage test = image;  
///showing image from mat 
 imshow("Mat",image);  
///showing image from IplImage 
 cvShowImage("Ipl",&test);  
 waitKey();  
return 0;  
 }