mat和IplImage*转换

int _tmain(int argc, _TCHAR* argv[])

{

//VideoCapture vc("input.avi");

//VideoWriter vw;

//vw.open( ".//output.avi", // 输出视频文件名

// (int)vc.get( CV_CAP_PROP_FOURCC ), // 也可设为CV_FOURCC_PROMPT，在运行时选取

// (double)vc.get( CV_CAP_PROP_FPS ), // 视频帧率

// cv::Size( (int)vc.get( CV_CAP_PROP_FRAME_WIDTH ), (int)vc.get( CV_CAP_PROP_FRAME_HEIGHT ) ), // 视频大小

// true ); // 是否输出彩色视频

//Mat frame;

//if (!vc.isOpened())

//{

// cout<<"can not find file"<<endl;

// return -1;

//}

////////////////////////

//vc>>frame;

//int fnum=1;

//Mat gray,edge,dst;

//while (!frame.empty())

//{

// cvtColor(frame, gray, CV_BGR2GRAY);

// imshow("win1",gray);

// threshold(gray,edge,70,255,1);

// imshow("win2",edge);

// //vector<vector<Point>> contours;

// //vector<Vec4i>hierarchy;

// //int idx=0;

// //findContours(edge,contours,hierarchy, CV_RETR_CCOMP, CV_CHAIN_APPROX_SIMPLE);

// //for ( ; idx >= 0; idx = hierarchy[idx][0])

// //{ 

// // Scalar color( (rand()&255), (rand()&255), (rand()&255) );

// // drawContours( dst, contours, idx, color, 1, 8, hierarchy );

// //}

// if (waitKey(1)>0)

// {

// break;

// }

// //vw<<frame;

// fnum++;

// vc>>frame;

//}

///////////////////////////////////////

//int num=20; //均值力度;

//Mat src = imread("Airplane.jpg",1);

////Mat src1u[3];

////split(src,src1u);

////int width=src.cols;

////int heigh=src.rows;

////Mat img;

////src.copyTo(img);

////Point center(width/2,heigh/2);

////for (int y=0; y<heigh; y++)

////{

//// uchar *imgP  = img.ptr<uchar>(y);

//// for (int x=0; x<width; x++)

//// {

//// int R = norm(Point(x,y)-center);

//// double angle = atan2((double)(y-center.y),(double)(x-center.x));

//// int tmp0=0,tmp1=0,tmp2=0;

//// for (int i=0;i<num;i++) //均值力度;

//// {

//// angle+=0.01;        //0.01控制变化频率，步长

//// int newX = R*cos(angle) + center.x;

//// int newY = R*sin(angle) + center.y;

//// if(newX<0)newX=0;

//// if(newX>width-1)newX=width-1;

//// if(newY<0)newY=0;

//// if(newY>heigh-1)newY=heigh-1;

//// tmp0 += src1u[0].at<uchar>(newY,newX);

//// tmp1 += src1u[1].at<uchar>(newY,newX);

//// tmp2 += src1u[2].at<uchar>(newY,newX);

//// }

//// imgP[3*x]=(uchar)(tmp0/num);

//// imgP[3*x+1]=(uchar)(tmp1/num);

//// imgP[3*x+2]=(uchar)(tmp2/num);

//// }

////}

//imshow("径向模糊",img);

//waitKey();

//imwrite("D:/径向模糊(旋转).jpg",img);

/////////////////////////////////////////////

Mat src = imread("Airplane.jpg",1);

imshow("win1",src);

IplImage * img;

img= &src.operator IplImage();

//Mat gray;

//cvtColor(src,gray,1,0);

//imshow("win3",src);

cvNamedWindow("win2",1);

cvShowImage("win2",img);

Mat gray(img,0);

imshow("win4",gray);

waitKey();

return 0;

}