Write Videos & Images

最新推荐文章于 2025-01-21 01:47:49 发布

Wayne__Yang

最新推荐文章于 2025-01-21 01:47:49 发布

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CC 4.0 BY-SA版权

分类专栏： OpenCV

本文链接：https://blog.youkuaiyun.com/Wayne__Yang/article/details/69654679

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1.Write Videos

#include <iostream>
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>

using namespace cv;
using namespace std;
int main(int argc, char **argv) 
{
  time_t t=time(0);
  string x=to_string(t);
  VideoCapture capture(0);
  double rate = 25.0;//视频的帧率  
  Size videoSize(640,480);  
  VideoWriter writer(x+".avi", CV_FOURCC('M', 'J', 'P', 'G'), rate, videoSize);  
  Mat frame;  
  
    while (capture.isOpened())  
    {  
        capture >> frame;  
        writer << frame;  
        imshow("video", frame);  
        if (waitKey(20) == 27)//27是键盘摁下esc时，计算机接收到的ascii码值  
        {  
            break;  
        }  
    }  
}

2.Write Images

#include <iostream>
#include<opencv2/core/core.hpp>
#include<opencv2/highgui/highgui.hpp>
using namespace cv;
using namespace std;
#include<string.h>
#include<string>
#include <sys/time.h>  
long getCurrentTime()    
{    
   struct timeval tv;    
   gettimeofday(&tv,NULL);    
   return tv.tv_sec * 1000 + tv.tv_usec / 1000;    
} 

int main(int argc, char **argv) 
{
  VideoCapture cap(0);
  Mat src;
  
  string b="~/Desktop/YZJPrograme/ImageCapture/1/";
  string c=".jpg";
  while(true)
  {
    cap>>src;
    cout<<getCurrentTime()<<endl;
  //  cout<<time(0)<<endl;
    string s;
    int x=1000;
    s=to_string(getCurrentTime());
    imwrite(s+c,src);
    imshow("s",src);
    if(waitKey(100)==27)
      break;
  }
  return 0;
}