-/*M///////////////////////////////////////////////////////////////////////////////////////
-//
-// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
-//
-// By downloading, copying, installing or using the software you agree to this license.
-// If you do not agree to this license, do not download, install,
-// copy or use the software.
-//
-//
-// Intel License Agreement
-// For Open Source Computer Vision Library
-//
-// Copyright (C) 2000, Intel Corporation, all rights reserved.
-// Third party copyrights are property of their respective owners.
-//
-// Redistribution and use in source and binary forms, with or without modification,
-// are permitted provided that the following conditions are met:
-//
-// * Redistribution's of source code must retain the above copyright notice,
-// this list of conditions and the following disclaimer.
-//
-// * Redistribution's in binary form must reproduce the above copyright notice,
-// this list of conditions and the following disclaimer in the documentation
-// and/or other materials provided with the distribution.
-//
-// * The name of Intel Corporation may not be used to endorse or promote products
-// derived from this software without specific prior written permission.
-//
-// This software is provided by the copyright holders and contributors "as is" and
-// any express or implied warranties, including, but not limited to, the implied
-// warranties of merchantability and fitness for a particular purpose are disclaimed.
-// In no event shall the Intel Corporation or contributors be liable for any direct,
-// indirect, incidental, special, exemplary, or consequential damages
-// (including, but not limited to, procurement of substitute goods or services;
-// loss of use, data, or profits; or business interruption) however caused
-// and on any theory of liability, whether in contract, strict liability,
-// or tort (including negligence or otherwise) arising in any way out of
-// the use of this software, even if advised of the possibility of such damage.
-//
-//M*/
-
-// LkDemoView.cpp : implementation of the CLkDemoView class
-
-#include "stdafx.h"
-#include "LkDemo.h"
-#include <math.h>
-
-#include "LkDemoDoc.h"
-#include "LkDemoView.h"
-
-#ifdef _DEBUG
-#define new DEBUG_NEW
-#undef THIS_FILE
-static char THIS_FILE[] = __FILE__;
-#endif
-
-/////////////////////////////////////////////////////////////////////////////
-// CLkDemoView
-
-IMPLEMENT_DYNCREATE(CLkDemoView, CView)
-
-BEGIN_MESSAGE_MAP(CLkDemoView, CView)
- //{{AFX_MSG_MAP(CLkDemoView)
- ON_WM_DESTROY()
- ON_WM_LBUTTONDOWN()
- ON_WM_RBUTTONDOWN()
- ON_WM_LBUTTONUP()
- ON_WM_MOUSEMOVE()
- ON_WM_ERASEBKGND()
- //}}AFX_MSG_MAP
-END_MESSAGE_MAP()
-
-/////////////////////////////////////////////////////////////////////////////
-// CLkDemoView construction/destruction
-
-CLkDemoView::CLkDemoView()
-{
- m_canvas.Create( GetSystemMetrics(SM_CXSCREEN), GetSystemMetrics(SM_CYSCREEN), 24 );
- m_track = false;
- m_night_mode = false;
- m_moved_idx = -1;
-}
-
-CLkDemoView::~CLkDemoView()
-{
-}
-
-BOOL CLkDemoView::PreCreateWindow(CREATESTRUCT& cs)
-{
- return CView::PreCreateWindow(cs);
-}
-
-/////////////////////////////////////////////////////////////////////////////
-// CLkDemoView drawing
-
-void CLkDemoView::OnDraw(CDC* pDC)
-{
- CLkDemoDoc* pDoc = GetDocument();
- ASSERT_VALID(pDoc);
-
- IplImage* img = m_camera.GetFrame().GetImage();
- if( img )
- {
- HDC dstDC = ::GetDC( m_hWnd );
- CRect sr, dr;
- GetClientRect( &dr );
-
- m_canvas.Create( img->width, img->height, 24 );
- IplImage* dst_img = m_canvas.GetImage();
-
- TrackFeatures();
-
- if( !m_night_mode )
- cvCopy( img, dst_img );
- else
- cvZero( dst_img );
-
- int i, count = m_tracker.GetCount();
- const CPointArray& array = m_tracker.GetPoints();
-
- for( i = 0; i < count; i++ )
- {
- CvPoint pt;
- CvScalar color;
- if( i != m_moved_idx )
- {
- pt = cvPoint( cvRound(array[i].x), cvRound(array[i].y));
- color = CV_RGB(0,255,0);
- }
- else
- {
- pt = cvPoint( cvRound(m_moved_point.x),
- cvRound(m_moved_point.y));
- color = CV_RGB(0,0,255);
- }
- cvCircle( dst_img, pt, 3, color, CV_FILLED );
- }
-
- if( m_track )
- m_track = count > 0;
-
- m_canvas.DrawToHDC( dstDC, &dr );
- ::ReleaseDC( m_hWnd, dstDC );
- }
- else
- {
- CRect r;
- pDC->GetClipBox(&r);
- pDC->FillSolidRect( r.left, r.top, r.Width(), r.Height(), RGB(0,0,0));
- }
-}
-
-/////////////////////////////////////////////////////////////////////////////
-// CLkDemoView message handlers
-
-void CLkDemoView::OnInitialUpdate()
-{
- CView::OnInitialUpdate();
-
- if( m_camera.Initialize( 320, 240, -1, m_hWnd ) == 0 )
- {
- MessageBox("Can't initialize camera. Try to change format","Error", MB_OK|MB_ICONERROR );
- }
- Camera().Start();
-}
-
-void CLkDemoView::OnDestroy()
-{
- m_camera.Uninitialize();
- CView::OnDestroy();
-}
-
-void CLkDemoView::OnLButtonDown(UINT nFlags, CPoint point)
-{
- CView::OnLButtonDown(nFlags, point);
- {
- point = ConvertScreenToImage(point);
- int index = FindPoint(point);
- if( index > 0 )
- {
- m_moved_idx = index;
- m_moved_point = point;
- CheckUpdate();
- }
- else if( m_gray.GetImage() )
- {
- m_tracker.AddPoint( point, m_gray );
- }
- }
-}
-
-
-void CLkDemoView::OnRButtonDown(UINT nFlags, CPoint point)
-{
- CView::OnRButtonDown(nFlags, point);
- {
- point = ConvertScreenToImage(point);
- int index = FindPoint(point);
- if( index > 0 )
- {
- m_tracker.RemovePoint( index );
- CheckUpdate();
- }
- }
-}
-
-
-void CLkDemoView::OnLButtonUp(UINT nFlags, CPoint point)
-{
- CView::OnLButtonUp(nFlags, point);
- {
- if( m_moved_idx > 0 && m_gray.GetImage() )
- {
- m_tracker.MovePoint( m_moved_idx, m_moved_point, m_gray );
- m_moved_idx = -1;
- CheckUpdate();
- }
- }
-}
-
-
-void CLkDemoView::OnMouseMove(UINT nFlags, CPoint point)
-{
- CView::OnMouseMove(nFlags, point);
- if( nFlags & MK_LBUTTON )
- {
- if( m_moved_idx > 0 && m_gray.GetImage() )
- {
- m_moved_point = ConvertScreenToImage(point);
- CheckUpdate();
- }
- }
-}
-
-
-void CLkDemoView::CheckUpdate()
-{
- InvalidateRect( 0, FALSE);
-}
-
-BOOL CLkDemoView::OnEraseBkgnd(CDC* pDC)
-{
- return TRUE;
-}
-
-
-void CLkDemoView::StartTracking()
-{
- double quality = 0.01;
- double min_distance = 10;
- int max_features = 300;
- if( m_camera.IsInitialized())
- {
- m_track = true;
- m_tracker.Initialize( m_camera.GetFrame(), max_features, quality, min_distance );
- }
-}
-
-
-void CLkDemoView::StopTracking()
-{
- m_track = false;
-}
-
-
-void CLkDemoView::TrackFeatures()
-{
- if( m_track && m_camera.IsInitialized() && m_camera.IsRunning() )
- {
- CImage& src = m_camera.GetFrame();
- m_gray.Create( src.Width(), src.Height(), 8 );
- m_gray.CopyOf( src, 0 );
- m_tracker.PushFrame( m_gray );
- }
-}
-
-
-int CLkDemoView::FindPoint( CPoint pt )
-{
- int i, count = m_tracker.GetCount();
- double min_dist = 6;
- int min_idx = -1;
- const CPointArray& array = m_tracker.GetPoints();
-
- for( i = 0; i < count; i++ )
- {
- CvPoint2D32f p1 = array[i];
- double d = fabs(pt.x - p1.x) + fabs(pt.y - p1.y);
- if( d < min_dist )
- {
- min_dist = d;
- min_idx = i;
- }
- }
-
- return min_idx;
-}
-
-
-CPoint CLkDemoView::ConvertScreenToImage( CPoint point )
-{
- CRect rect;
- GetClientRect( &rect );
-
- point.x = point.x * m_gray.Width()/MAX(rect.Width(),1);
- point.y = point.y * m_gray.Height()/MAX(rect.Height(),1);
-
- return point;
-}
-
-/*void CLkDemoView::OnLButtonDblClk(UINT nFlags, CPoint point)
-{
- CView::OnLButtonDblClk(nFlags, point);
-
- point = ConvertScreenToImage(point);
- int index = FindPoint( point );
- if( index >= 0 )
- {
- m_tracker.RemovePoint( index );
- }
- else if( m_gray.GetImage() )
- {
- m_tracker.AddPoint( point, m_gray );
- }
- CheckUpdate();
-}*/
projects / opencv / blobdiff