opencv—读取一张图片并滤波

#include <opencv2\opencv.hpp>
#include <iostream>
#include <string>
using namespace cv;
using namespace std;

int main()
{
	Mat M(7,7,CV_32FC2,Scalar(1,3));
	IplImage* img=cvLoadImage("opencv.jpg");
	cvNamedWindow("Window1",CV_WINDOW_AUTOSIZE);
	//cvRectangle(img,cvPoint(10,10),cvPoint(250,250),cvScalar(0,255,0),5);
	cvShowImage("Window1",img);
	cvNamedWindow("滤波后图像");
	IplImage* img0=cvCreateImage(
		cvGetSize(img),IPL_DEPTH_8U,
		3);

       cvSmooth(img,img0,CV_GAUSSIAN,7,7);

	cvShowImage("滤波后图像",img0);

	cvWaitKey(0);
	cvReleaseImage(&img);
	cvReleaseImage(&img0);
	cvDestroyWindow("读取一张照片");
	cvDestroyWindow("滤波后图像");
	return 0;
}