opencv：形态学操作-腐蚀与膨胀

#include <opencv2/opencv.hpp>
#include <iostream>
using namespace cv;
using namespace std;
int main(int argc, char** argv)
{
    Mat src = imread("f:/images/shuang001.jpg");
    Mat gray, binary;
    cvtColor(src, gray, COLOR_BGR2GRAY);
    threshold(gray, binary, 0, 255, THRESH_BINARY | THRESH_OTSU);
    imshow("src", src);
    imshow("binary", binary);
    Mat dst1, dst2;
    Mat kernel = getStructuringElement(MORPH_RECT, Size(3, 3), Point(-1, -1));
    // 腐蚀
    //erode(binary, binary, kernel);
    // 可以传入彩色图像
    erode(src, dst1, kernel);
    // 膨胀
    dilate(src, dst2, kernel);
    imshow("erode", dst1);
    imshow("dilate", dst2);
    waitKey(0);
    destroyAllWindows();
    return 0;
}