#include <iostream>

#include <opencv2/opencv.hpp>

using namespace std;

using namespace cv;

/**

*opencv自带的掩膜操作API

*/

int test2()

{

  Mat img1, img2, img3;

  img1 = imread("D://images//4.jpg");

  if (!img1.data)

  {

    cout << "图片不存在" << endl;

    return -1;

  }

  namedWindow("win1", CV_WINDOW_AUTOSIZE);

  imshow("win1", img1);

  Mat kernel = (Mat_<char>(3, 3) << 0, -1, 0, -1, 5, -1, 0, -1, 0);

  filter2D(img1,img2,img1.depth(),kernel);

  namedWindow("win2", CV_WINDOW_AUTOSIZE);

  imshow("win2", img2);

  //imwrite("6-2.jpg",img2);

}

int main()

{

  

  int k2 = test2();

  waitKey(0);

  return 0;

}

 

 

 opencv掩膜操作_#include