qt+opencv读取视频

#include "mainwindow.h"

#include <QApplication>

#include "opencv2/opencv.hpp"

#include <iostream>

#include <QDebug>

using namespace cv;

using namespace std;

int main(int argc, char *argv[])

{

    QApplication a(argc, argv);

    /*Mat color=imread("E:/QTimage/2.jpg");

    imshow("color",color);

    Mat edge,grayImage;

    cvtColor(color,grayImage,CV_BGR2GRAY);

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

    Canny(edge,edge,3,9,3);

    imshow("2",edge);*/

    VideoCapture capture("E:/QTprogram/021403/0.mp4");//视频格式随意

    int i=0;

    while(1)

    {

        Mat frame;

        capture>>frame;

        qDebug()<<"bofang"<<i;//判断播放帧数

        i++;

        if(frame.empty())

        {

            qDebug()<<"stop";

            break;

        }

        imshow("shipin",frame);

        waitKey(30);

    }

    return a.exec();

    //return 0;

}