OpenCv 자체 전경 측정 방법

#include "opencv2/video/background_segm.hpp"
#include "opencv2/highgui/highgui.hpp"
#include 
#include 
#include 
using namespace cv;

void help()
{
	printf("
Do background segmentation, especially demonstrating the use of cvUpdateBGStatModel().
"
		"Learns the background at the start and then segments.
"
		"Learning is togged by the space key. Will read from file or camera
"
		"Call:
"
		"./  bgfg_segm [file name -- if no name, read from camera]

");
}

//this is a sample for foreground detection functions
int main(int argc, char** argv)
{
	VideoCapture cap;
	bool update_bg_model = true;

	if( argc < 2 )
		cap.open(0);
	else
		cap.open(argv[1]);
	help();

	if( !cap.isOpened() )
	{
		printf("can not open camera or video file
");
		return -1;
	}

	namedWindow("image", CV_WINDOW_NORMAL);
	namedWindow("foreground mask", CV_WINDOW_NORMAL);
	namedWindow("foreground image", CV_WINDOW_NORMAL);
	namedWindow("mean background image", CV_WINDOW_NORMAL);

	BackgroundSubtractorMOG2 bg_model;
	Mat img, fgmask, fgimg;

	for(;;)
	{
		cap >> img;

		if( img.empty() )
			break;

		if( fgimg.empty() )
			fgimg.create(img.size(), img.type());

		//update the model
		bg_model(img, fgmask, update_bg_model ? -1 : 0);

		fgimg = Scalar::all(0);
		
		img.copyTo(fgimg, fgmask);

		Mat bgimg;
		bg_model.getBackgroundImage(bgimg);
		//erode(fgimg,fgimg,0);
		//dilate(fgimg,fgimg,0);
		
	    int nl = fgmask.rows;
		int nc = fgmask.cols * fgmask.channels();
		 
		//         
		for(int j=0; j(j);
			for(int i=0; i

#include "cvaux.h"
#include "highgui.h"
#include 

//this is a sample for foreground detection functions
int main(int argc, char** argv)
{
	IplImage*       tmp_frame = NULL;
	CvCapture*      cap = NULL;
	
	if( argc < 2 )
	{
		printf("please specify video file name 
");
		exit(0);
	}

	//cap = cvCaptureFromFile(argv[1]);
	cap=cvCreateCameraCapture(0);
	tmp_frame = cvQueryFrame(cap);
	if(!tmp_frame)
	{
		printf("bad video 
");
		exit(0);
	}

	cvNamedWindow("BG", 1);
	cvNamedWindow("FG", 1);

	//create BG model
	CvBGStatModel* bg_model = cvCreateFGDStatModel( tmp_frame );

	for( int fr = 1;tmp_frame; tmp_frame = cvQueryFrame(cap), fr++ )
	{
		double t = (double)cvGetTickCount();
		cvUpdateBGStatModel( tmp_frame, bg_model );
		t = (double)cvGetTickCount() - t;
		printf( "%.1f
", t/(cvGetTickFrequency()*1000.) );
		cvShowImage("BG", bg_model->background);
		cvShowImage("FG", bg_model->foreground);
		char k = cvWaitKey(5);
		if( k == 27 ) break;
		//printf("frame# %d \r", fr);
	}


	cvReleaseBGStatModel( &bg_model );
	cvReleaseCapture(&cap);
	
	return 0;
}