opencv学习笔记-掩膜操作

#include <opencv2/opencv.hpp>
#include <iostream>
#include <math.h>
 
using namespace cv;
 
int main(int argc, char** argv) {
	Mat src, dst;
	src = imread("D:/hand.png");
	if (!src.data) {
		printf("could not load image...\n");
		return -1;
	}
	double t = getTickCount();
	//掩膜操作函数
	Mat kernel = (Mat_<char>(3, 3) << 0, -1, 0, -1, 5, -1, 0, -1, 0);
	filter2D(src, dst, src.depth(), kernel);
	double t = getTickCount();
	double timeconsume = (getTickCount() - t) / getTickFrequency();
	printf("tim consume %.2f\n", timeconsume);
	//计算操作所消耗的时间
	
	double timeconsume = (getTickCount() - t) / getTickFrequency();
	printf("tim consume %.2f\n", timeconsume);
 
 
	imshow("input image", src);
	imshow("contrast image demo", dst);
 
	waitKey(0);
	return 0;
}

标签：load,src,掩膜,int,笔记,opencv,include,Mat
来源： https://blog.csdn.net/weixin_51244852/article/details/118096324