VideoCapture cap; if (argc > 1) cap.open(argv[1]); else cap.open(0); if (!cap.isOpened()) { std::cerr << "Cannot read video. Try moving video file to sample directory." << std::endl; return -1; }
2.Convert OpenCV Mat type to iplImage * type. OpenCV Mat 类型转化为IplImage*指针类型
Mat srcImg; // Mat type variable .IplImage *resIplPtr = NULL; // Initialize by NULL.srcImg = imread(imagePath); // read image; resIplPtr = &(IplImage(srcImg)); // Mat to IplImage Pointer resIplPtr = NULL; // set as NULL.
