初识Opencv4.X----图像卷积

//图像卷积原理
#include <stdio.h>
#include <iostream>
#include <string>
#include <opencv2\opencv.hpp>
using namespace std;
using namespace cv;
int main()
{
    
    
	Mat src = (cv::Mat_<float>(5, 5) <<
		1, 2, 3, 4, 5,
		6, 7, 8, 9, 10,
		11, 12, 13, 14, 15,
		16, 17, 18, 19, 20,
		21, 22, 23, 24, 25);//枚举赋值法，必须加括号，不然VS2017会报错
	Mat dst;
	Mat kernel = (cv::Mat_<float>(3, 3) <<
		1, 2, 1,
		0, 2, 0,
		1, 2, 1);
	kernel = kernel / 10;//除以10做归一化，防止卷积后像素值越界
	filter2D(src, dst, CV_32F, kernel);
	waitKey(0);
	return 0;
}

通过Image Watch插件查看Mat变量数据：