（21）Laplance

这个算法还是用来进行边缘检测的

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 #include <opencv2/opencv.hpp>
 #include <iostream>
 using namespace std;
 using namespace cv;

 Mat src, dst, gray_src;

 int main(int agrc, char** agrv) {

     src = imread("C:\\Users\\32829\\Desktop\\aa.jpg");
     if (!src.data) {
         printf("no load..\n");
         return -;
     }
     const char* input_win = "input";
     const char* out_put = "out_put";
     namedWindow(input_win, CV_WINDOW_AUTOSIZE);
     namedWindow(out_put, CV_WINDOW_AUTOSIZE);
     imshow(input_win, src);
     GaussianBlur(src, dst, Size(, ), , );
     cvtColor(dst, gray_src, CV_BGR2GRAY);
     Mat edge_image;
     Laplacian(gray_src, edge_image, CV_16S, );
     convertScaleAbs(edge_image, edge_image);
     threshold(edge_image, edge_image, , , THRESH_OTSU | THRESH_BINARY);
     imshow(out_put, edge_image);

     waitKey();
     return ;
 }

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