opencv 提取视频帧

利用opencv函数提取视频的帧。

 

 1 #include"cv.h"
 2 #include"highgui.h"  
 3 #include<stdio.h>
 4 
 5 
 6 
 7 void capture_frame(){
 8 
 9     char FileName[80];
10     memset(FileName,0,sizeof FileName); 
11     CvCapture* capture = cvCaptureFromAVI("D:\\frame_capture\\data\\R0014063.AVI");
12     IplImage* img = 0; 
13     int i;
14 
15     i = 0;
16 
17     while(cvGrabFrame(capture)){
18         img=cvRetrieveFrame(capture);           // retrieve the captured frame
19         sprintf(FileName,"D:\\frame_capture\\data\\%04d.jpg",i);
20         cvSaveImage(FileName,img);    
21         i++;
22     }
23 
24 
25     cvReleaseCapture(&capture);
26 }
27 
28 
29 void main(){
30 
31 capture_frame();
32 
33 }

 

如果无法读取视频，请安装K-Lite Codec Pack解码器。