opencv初步入门编程1

最新推荐文章于 2022-05-29 10:48:05 发布

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本篇博客介绍了一个使用OpenCV进行视频捕获及处理的简单程序实例。该程序从摄像头获取视频帧并将其保存为AVI文件，同时显示实时视频流。涉及的技术包括OpenCV库的使用、视频捕获、视频帧处理与展示等。

#include <cv.h>
#include <highgui.h>

int main(int argc,char** argv)
{
////IplImage * img=cvLoadImage(argv[1]);
//IplImage* greyImg = cvCreateImage(cvGetSize(img), img->depth, 1);
//IplImage* cannyImg = cvCreateImage(cvGetSize(img), img->depth, 1);
//cvConvertImage(img,greyImg);
//cvSmooth(greyImg,cannyImg);
//cvCanny(cannyImg,cannyImg,10,100);

CvCapture* capture=cvCreateCameraCapture(0);

IplImage* frame=cvQueryFrame(capture);
IplImage* greyImg = cvCreateImage(cvGetSize(frame), frame->depth, 1);
IplImage* cannyImg = cvCreateImage(cvGetSize(frame), frame->depth, 1);
CvVideoWriter * writer=cvCreateVideoWriter("hello.avi",CV_FOURCC('X','V','I','D') ,33,cvGetSize(frame));

while(1)
{
//capture=cvCreateCameraCapture(0);
IplImage* frame=cvQueryFrame(capture);

//cvConvertImage(frame,greyImg);
//cvSmooth(greyImg,cannyImg);
//cvCanny(cannyImg,cannyImg,140,100);
cvWriteFrame(writer,frame);

cvNamedWindow("example");
cvShowImage("example",frame);
cvWaitKey(33);
}
cvReleaseCapture(&capture);
cvDestroyWindow("example");

}