camshift_mfcdlg.cpp

利用Camshift算法进行彩色目标的跟踪.并且本程序在MFC下进行的编写的,有按钮,比较方便

// CAMSHIFT_MFCDlg.cpp : implementation file
//

#include "stdafx.h"
#include "CAMSHIFT_MFC.h"
#include "CAMSHIFT_MFCDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCAMSHIFT_MFCDlg dialog

CCAMSHIFT_MFCDlg::CCAMSHIFT_MFCDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CCAMSHIFT_MFCDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CCAMSHIFT_MFCDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CCAMSHIFT_MFCDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCAMSHIFT_MFCDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CCAMSHIFT_MFCDlg, CDialog)
	//{{AFX_MSG_MAP(CCAMSHIFT_MFCDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(ID_START, OnStart)
	ON_BN_CLICKED(ID_STOP, OnStop)
	ON_WM_DESTROY()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCAMSHIFT_MFCDlg message handlers

BOOL CCAMSHIFT_MFCDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CCAMSHIFT_MFCDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CCAMSHIFT_MFCDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CCAMSHIFT_MFCDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CCAMSHIFT_MFCDlg::OnStart() 
{

	// TODO: Add your control notification handler code here
    //CvCapture* capture = 0;
    
    capture = cvCaptureFromCAM(-1); 

    if( !capture )
    {
       MessageBox("不能打开摄像头",MB_OK);
       return;
    }

    cvNamedWindow( "Histogram", 1 );
    cvNamedWindow( "CamShiftDemo", 1 );
    cvSetMouseCallback( "CamShiftDemo", on_mouse, 0 );
    cvCreateTrackbar( "Vmin", "CamShiftDemo", &vmin, 256, 0 );
    cvCreateTrackbar( "Vmax", "CamShiftDemo", &vmax, 256, 0 );
    cvCreateTrackbar( "Smin", "CamShiftDemo", &smin, 256, 0 );

    for(;;)
    {
        IplImage* frame = 0;
        int i, bin_w, c;

        frame = cvQueryFrame( capture );
        if( !frame )
            break;

        if( !image )
        {
            /* allocate all the buffers */
            image = cvCreateImage( cvGetSize(frame), 8, 3 );
            image->origin = frame->origin;
            hsv = cvCreateImage( cvGetSize(frame), 8, 3 );
            hue = cvCreateImage( cvGetSize(frame), 8, 1 );
            mask = cvCreateImage( cvGetSize(frame), 8, 1 );
            backproject = cvCreateImage( cvGetSize(frame), 8, 1 );
            hist = cvCreateHist( 1, &hdims, CV_HIST_ARRAY, &hranges, 1 );
            histimg = cvCreateImage( cvSize(320,200), 8, 3 );
            cvZero( histimg );
        }

        cvCopy( frame, image, 0 );
        cvCvtColor( image, hsv, CV_BGR2HSV );

        if( track_object )
        {
            int _vmin = vmin, _vmax = vmax;

            cvInRangeS( hsv, cvScalar(0,smin,MIN(_vmin,_vmax),0),
                        cvScalar(180,256,MAX(_vmin,_vmax),0), mask );
            cvSplit( hsv, hue, 0, 0, 0 );

            if( track_object < 0 )
            {
                float max_val = 0.f;
                cvSetImageROI( hue, selection );
                cvSetImageROI( mask, selection );
                cvCalcHist( &hue, hist, 0, mask );
                cvGetMinMaxHistValue( hist, 0, &max_val, 0, 0 );
                cvConvertScale( hist->bins, hist->bins, max_val ? 255. / max_val : 0., 0 );
                cvResetImageROI( hue );
                cvResetImageROI( mask );
                track_window = selection;
                track_object = 1;

                cvZero( histimg );
                bin_w = histimg->width / hdims;
                for( i = 0; i < hdims; i++ )
                {
                    int val = cvRound( cvGetReal1D(hist->bins,i)*histimg->height/255 );
                    CvScalar color = hsv2rgb(i*180.f/hdims);
                    cvRectangle( histimg, cvPoint(i*bin_w,histimg->height),
                                 cvPoint((i+1)*bin_w,histimg->height - val),
                                 color, -1, 8, 0 );
                }
            }

            cvCalcBackProject( &hue, backproject, hist );
            cvAnd( backproject, mask, backproject, 0 );
            cvCamShift( backproject, track_window,
                        cvTermCriteria( CV_TERMCRIT_EPS | CV_TERMCRIT_ITER, 10, 1 ),
                        &track_comp, &track_box );
            track_window = track_comp.rect;
            
            if( backproject_mode )
                cvCvtColor( backproject, image, CV_GRAY2BGR );
            if( image->origin )
                track_box.angle = -track_box.angle;
            cvEllipseBox( image, track_box, CV_RGB(255,0,0), 3, CV_AA, 0 );
        }
        
        if( select_object && selection.width > 0 && selection.height > 0 )
        {
            cvSetImageROI( image, selection );
            cvXorS( image, cvScalarAll(255), image, 0 );
            cvResetImageROI( image );
        }
	


        //画一个矩形，用于标志跟踪情况
	cvRectangle(image, cvPoint(image->width/3,image->height/5), cvPoint(image->width*2/3,image->height*4/5),
	CV_RGB(128,128,128),1, 8, 0);

    cvShowImage( "CamShiftDemo", image );
    cvShowImage( "Histogram", histimg );

    c = cvWaitKey(10);
    if( c == 27 )
        break;
        switch( c )
        {
        case 'b':
            backproject_mode ^= 1;
            break;
        case 'c':
            track_object = 0;
            cvZero( histimg );
            break;
      
        default:
            ;
        }


  
//    cvReleaseCapture( &capture );
 //   cvDestroyWindow("CamShiftDemo");
  
	}
  
}

void CCAMSHIFT_MFCDlg::OnStop() 
{
	// TODO: Add your control notification handler code here
	if(capture)
	{
		cvReleaseCapture( &capture );
	    cvDestroyWindow("CamShiftDemo");
		cvDestroyWindow("Histogram");
	}
}

void CCAMSHIFT_MFCDlg::OnDestroy() 
{
	CDialog::OnDestroy();
	
	// TODO: Add your message handler code here
	if(capture)
	{
		cvReleaseCapture( &capture );
	    cvDestroyWindow("CamShiftDemo");
		cvDestroyWindow("Histogram");
	}
	
}