opencv

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

using namespace cv;
using namespace std;


int main(int argc, char** argv)
{
	Mat src = imread("C:\\Users\\Administrator\\Desktop\\0001.jpg");
	
	if (src.empty())
	{
		cout << "open pic wrong" << endl;
		return -1;
	}
	
	/*namedWindow("opencv window", CV_WINDOW_AUTOSIZE);
	imshow("opencv demo", src);
	namedWindow("output window", CV_WINDOW_AUTOSIZE);
	Mat output_image;
	cvtColor(src, output_image, CV_BGR2GRAY);
	imshow("output window", output_image);
	imwrite("pic.tif", output_image);
	*/

	imshow("原始图", src);

	//将原始图转为灰度图
	Mat edge, grayImage;
	cvtColor(src, grayImage, CV_BGR2GRAY);

	//降噪
	blur(grayImage, edge, Size(3, 3));

	//用canny算子
	Canny(edge, edge, 3, 9, 3);

	//显示效果图
	imshow("效果图", edge);
	waitKey(0);
	return 0;
}