高斯建模

Emgu 版本：

代码privatevoidbutton1_Click(objectsender, EventArgs e)

{

Emgu.CV.Capture cap=newCapture("d:\1.wmv");

Emgu.CV.VideoSurveillance.BGStatModel<Bgr>bg=null; ;

Capture c=newCapture("d:\1.wmv");

Image<Bgr,byte>img=null;

while((img=c.QueryFrame())!=null)

{

this.count++;

if(this.count==1)

{

bg=newEmgu.CV.VideoSurveillance.BGStatModel<Bgr>(img,

Emgu.CV.CvEnum.BG_STAT_TYPE.GAUSSIAN_BG_MODEL);

}

else

{

//更新高斯模型

bg.Update(img);

this.pictureBox1.Image=img.Bitmap;

this.pictureBox2.Image=bg.BackgroundMask.Bitmap;

this.pictureBox3.Image=bg.ForgroundMask.Bitmap;

Application.DoEvents();

System.Threading.Thread.Sleep(30);

}



}

}

C++版本：

代码intgaoshi(intargc,charargv)

{

IplImagepFrame=NULL;

IplImagepFrImg=NULL;

IplImagepBkImg=NULL;

CvCapturepCapture=NULL;

intnFrmNum=0;



cvNamedWindow("video",1);

cvNamedWindow("background",1);

cvNamedWindow("foreground",1);

cvMoveWindow("video",30,0);

cvMoveWindow("background",360,0);

cvMoveWindow("foreground",690,0);

if( argc>2)

{

fprintf(stderr,"Usage: bkgrd [video_file_name]n");

return-1;

}





//打开视频文件

if(argc==2)

if(!(pCapture=cvCaptureFromFile(argv)))

{

fprintf(stderr,"Can not open video file %sn", argv[1]);

return-2;

}

//打开摄像头

if(argc==1)

if(!(pCapture=cvCaptureFromCAM(-1)))

{

fprintf(stderr,"Can not open camera.n");

return-2;

}



//初始化高斯混合模型参数

CvGaussBGModelbg_model=NULL;



while(pFrame=cvQueryFrame( pCapture ))

{

nFrmNum++;

if(nFrmNum<3)

continue;

if(nFrmNum==3)

{

pBkImg=cvCreateImage(cvSize(pFrame->width, pFrame->height), IPL_DEPTH_8U,3);

pFrImg=cvCreateImage(cvSize(pFrame->width, pFrame->height), IPL_DEPTH_8U,1);





//高斯背景建模，pFrame可以是多通道图像也可以是单通道图像

//cvCreateGaussianBGModel函数返回值为CvBGStatModel，

//需要强制转换成CvGaussBGModel

bg_model=(CvGaussBGModel)cvCreateGaussianBGModel(pFrame,0);

}

else

{

//更新高斯模型

cvUpdateBGStatModel(pFrame, (CvBGStatModel)bg_model );



//pFrImg为前景图像，只能为单通道

//pBkImg为背景图像，可以为单通道或与pFrame通道数相同

cvCopy(bg_model->foreground,pFrImg,0);

cvCopy(bg_model->background,pBkImg,0);



//把图像正过来

pBkImg->origin=1;

pFrImg->origin=1;



cvShowImage("video", pFrame);

cvShowImage("background", pBkImg);

cvShowImage("foreground", pFrImg);

if( cvWaitKey(2)>=0)

break;

}



}



//释放高斯模型参数占用内存

cvReleaseBGStatModel((CvBGStatModel**)&bg_model);

cvDestroyWindow("video");

cvDestroyWindow("background");

cvDestroyWindow("foreground");

cvReleaseImage(&pFrImg);

cvReleaseImage(&pBkImg);

cvReleaseCapture(&pCapture);



}



原文链接: https://www.cnblogs.com/81/archive/2010/12/13/1904566.html

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