opencv调用摄像头录制视频

深碍√TFBOYSˉ_ 2022-09-18 09:49 257阅读 0赞

1.安装opencv1.0和vc6.0并配置好，vc6下配置opencv1.0教程[http://wiki.opencv.org.cn/index.php/VC6%E4%B8%8B%E5%AE%89%E8%A3%85%E4%B8%8E%E9%85%8D%E7%BD%AEOpenCV1.0][http_wiki.opencv.org.cn_index.php_VC6_E4_B8_8B_E5_AE_89_E8_A3_85_E4_B8_8E_E9_85_8D_E7_BD_AEOpenCV1.0]

2.安装XVID编解码器，下载地址[http://download.csdn.net/detail/whzhaochao/6551035][http_download.csdn.net_detail_whzhaochao_6551035]

3.代码

#include "cv.h"
    #include "cxcore.h"
    #include "highgui.h"
    #include <iostream>
    
    using namespace std;
    int main()
    {
       CvCapture* capture=cvCaptureFromCAM(-1);
       CvVideoWriter* video=NULL;
       IplImage* frame=NULL;
       int n;
       if(!capture) //如果不能打开摄像头给出警告
       {
          cout<<"Can not open the camera."<<endl;
          return -1;
       }
       else
       {
          frame=cvQueryFrame(capture); //首先取得摄像头中的一帧
          video=cvCreateVideoWriter("camera.avi", CV_FOURCC('X', 'V', 'I', 'D'), 25,
          cvSize(frame->width,frame->height)); //创建CvVideoWriter对象并分配空间
    		//保存的文件名为camera.avi，编码要在运行程序时选择，大小就是摄像头视频的大小，帧频率是32
          if(video) //如果能创建CvVideoWriter对象则表明成功
          {
             cout<<"VideoWriter has created."<<endl;
          }
    
          cvNamedWindow("Camera Video",1); //新建一个窗口
          int i = 0;
          while(1) 
          {
             frame=cvQueryFrame(capture); //从CvCapture中获得一帧
             if(!frame)
             {
                cout<<"Can not get frame from the capture."<<endl;
                break;
             }
             n=cvWriteFrame(video,frame); //判断是否写入成功，如果返回的是1，表示写入成功
             cout<<n<<endl;
             cvShowImage("Camera Video",frame); //显示视频内容的图片
             i++;
             if(cvWaitKey(2)>0) 
                break; //有其他键盘响应，则退出
          }
    
          cvReleaseVideoWriter(&video);
          cvReleaseCapture(&capture);
          cvDestroyWindow("Camera Video");
       }
       return 0;
    }

[http_wiki.opencv.org.cn_index.php_VC6_E4_B8_8B_E5_AE_89_E8_A3_85_E4_B8_8E_E9_85_8D_E7_BD_AEOpenCV1.0]: http://wiki.opencv.org.cn/index.php/VC6%E4%B8%8B%E5%AE%89%E8%A3%85%E4%B8%8E%E9%85%8D%E7%BD%AEOpenCV1.0
[http_download.csdn.net_detail_whzhaochao_6551035]: http://download.csdn.net/detail/whzhaochao/6551035