opencv读取视频

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1.CommandLineParser类

const char* args = {

        "{ m | useMouse | true | how to choose object to track}"
        "{ v | videoName | color.avi | the video to track}"
        "{ t | featureType | 3 | 0 -- HUE 1 -- SATURATION_HUE 2 -- LBP_HUE 3 -- LBP_SATURATION_HUE}"
    };

    CommandLineParser parser(argc, argv, args);//代替命令行，可以直接运行，不需要输入参数了
    bool isUseMouse = parser.get<bool>("useMouse");

    Rect trackWindow;

    string videoName;
    if(isUseMouse)
        videoName = parser.get<string>("videoName");
    else
    {
        /*
         * read config parameters from file
         */
        string configFile = "config.yaml";
        readXML(configFile, videoName, trackWindow);
    }

在OPENCV中CommandLineParser parser(argc, argv, args)的使用可以代替命令行的输入，更为详细的解析在

opencv源码解析之(5)：CommandLineParser类的简单理解

2.视频的读取

VideoCapture video;
    video.open(videoName);
    if(!video.isOpened()){
        cerr << "open " << videoName << " error" << endl;
        cerr << "current parameters : " << endl;
        parser.printParams();
        return -1;
    }

要用的的dll和lib库有：opencv_imgproc2410d.lib，opencv_video2410d.lib，opencv_core2410d.lib，opencv_highgui2410d.lib

一定要加入opencv_ffmpeg2410.dll

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