Opencv形态学滤波-顶帽

#include<iostream>
#include<opencv2/opencv.hpp>

using namespace std;
using namespace cv;

Mat srcImage, dstImage;
int g_nOpenValue = 0;

//有滚动条事件时，可以进入回调函数
void on_Trackbar(int, void *)
{
	Mat element = getStructuringElement(MORPH_RECT, Size(2 * g_nOpenValue + 1, 2 * g_nOpenValue + 1));
	morphologyEx(srcImage, dstImage, CV_MOP_TOPHAT, element);
	imshow("【顶帽窗口】", dstImage);
}

int main()
{
	srcImage = imread("bear.jpg");
	imshow("【原图】", srcImage);
	dstImage.create(srcImage.size(), srcImage.type());

	namedWindow("【顶帽窗口】");
	createTrackbar("Value", "【顶帽窗口】", &g_nOpenValue, 100, on_Trackbar);
	on_Trackbar(g_nOpenValue, 0);

	waitKey(0);

	return 0;
}#include<iostream>
#include<opencv2/opencv.hpp>