opencv 边缘算子

两个边缘算子，闹半天……哦好吧其实是一天。

又回去学习了实参。形参。引用。构造。

#include<iostream>   
#include <opencv2/opencv.hpp> 
using namespace std;  
using namespace cv;  
 
void Xfilter(Mat kernel, Mat src, Mat dst);    
void Yfilter(Mat kernel, Mat src, Mat dst);
int main()  
{  
    Mat src,dst1,dst2;  

    Mat kernel1(3,3,CV_32F,cv::Scalar(0));
     kernel1.at<float>(0,0) = -1.0;
     kernel1.at<float>(0,1) = -2.0;
     kernel1.at<float>(0,2) = -1.0;
     kernel1.at<float>(2,0) = 1.0;
     kernel1.at<float>(2,1) = 2.0;
     kernel1.at<float>(2,2) = 1.0;
    
     Mat kernel2(3,3,CV_32F,cv::Scalar(0));
     kernel2.at<float>(0,0) = -1.0;
     kernel2.at<float>(1,0) = -2.0;
     kernel2.at<float>(2,0) = -1.0;
     kernel2.at<float>(0,2) = 1.0;
     kernel2.at<float>(1,2) = 2.0;
     kernel2.at<float>(2,2) = 1.0;    

 
    src = imread("D:\\codeDemo\\abc\\pray2.jpg");  
 
    if(!src.data )  
    {  
         cout<<""<<endl;  
         return -1;  
    }  
     namedWindow("src");
    imshow("src",src);  

     dst1.create(src.size(),src.type());
      Xfilter(kernel1, src, dst1);
    namedWindow("dst1");
    imshow("dst1",dst1);  

     dst2.create(src.size(),src.type());
      Yfilter(kernel2, src, dst2);
    namedWindow("dst2");
    imshow("dst2",dst2);  

    waitKey();
    return 0; 
} 
    void Xfilter(Mat kernel, Mat src, Mat dst)
    {    
     filter2D(src,dst,src.depth(),kernel);
    }    
    void Yfilter(Mat kernel, Mat src, Mat dst)
    {     
     filter2D(src,dst,src.depth(),kernel);
    }