OpenCV学习（二）读取视频文件和摄像头

#include "highgui.h"
int main(int argc, char* argv[])
{
cvNamedWindow("avi");
//创建窗口
CvCapture* capture = cvCreateFileCapture(“视频文件路径");
//打开视频文件路径 //cvCreateCameraCapture
//打开摄像头进行捕捉
IplImage* frame;
while(1)
{
frame = cvQueryFrame(capture);
//加载视频文件
if(!frame)
break;

cvShowImage("avi",frame);
//在窗口中显示视频文件
char c = cvWaitKey(33);
//延时33毫秒
if(c==27)
break;
}
cvReleaseCapture(&capture);
//释放内存
cvDestroyWindow("avi");
//销毁窗口
return 0;
}