opencv 图像边缘检测及预处理核心代码

// PlayDlg.cpp : implementation file // #include "stdafx.h" #include "Play.h" #include "PlayDlg.h" #ifdef _DEBUG #define new DEBUG_NEW #endif // CAboutDlg dialog used for App About class CAboutDlg : public CDialog { public: CAboutDlg(); // Dialog Data enum { IDD = IDD_ABOUTBOX }; protected: virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support // Implementation protected: DECLARE_MESSAGE_MAP() }; CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) { } void CAboutDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); } BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) END_MESSAGE_MAP() // CPlayDlg dialog CPlayDlg::CPlayDlg(CWnd* pParent /*=NULL*/) : CDialog(CPlayDlg::IDD, pParent) { m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } void CPlayDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); } BEGIN_MESSAGE_MAP(CPlayDlg, CDialog) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() //}}AFX_MSG_MAP ON_BN_CLICKED(IDC_BUTTON1, &CPlayDlg::OnBnClickedButton1) // ON_EN_CHANGE(IDC_EDIT1, &CPlayDlg::OnEnChangeEdit1) END_MESSAGE_MAP() // CPlayDlg message handlers BOOL CPlayDlg::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 SetDlgItemText(IDC_EDIT1, _T("C://55.avi")); SetDlgItemText(IDC_EDIT2, _T("C://56.avi")); return TRUE; // return TRUE unless you set the focus to a control } void CPlayDlg::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 CPlayDlg::OnPaint() { if (IsIconic()) { CPaintDC dc(this); // device context for painting SendMessage(WM_ICONERASEBKGND, reinterpret_cast<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 function to obtain the cursor to display while the user drags // the minimized window. HCURSOR CPlayDlg::OnQueryDragIcon() { return static_cast<HCURSOR>(m_hIcon); } void CPlayDlg::OnBnClickedButton1() { CString str1; CString str2; //IDC_EDIT1.GetWindowText(VideoFileName); //VideoFileName.GetBuffer = GetWindowText(IDC_EDIT1); //GetDlgItemText(IDC_EDIT1, (LPTSTR)str1,255); GetDlgItemText(IDC_EDIT1, str1); GetDlgItemText(IDC_EDIT2, str2); ///////////////这里要疯了 CString转char* 在unicode下根本不行 浪费了两天时间 //char* VideoFileName = new char[str1.GetLength()+1]; //strcpy(VideoFileName, str1); char * VideoFileName = str1.GetBuffer(); char * SaveFileName = str2.GetBuffer(); str1.ReleaseBuffer(); str2.ReleaseBuffer(); //str1.GetLength()); //char* tmpFileName = (char*)(LPCTSTR)str1; //char VideoFileName[1024] = {0}; //strcpy(VideoFileName, tmpFileName); //char* VideoFileName = (char*)(LPCTSTR)(str1); IplImage * pFrame = NULL; IplImage * pImage = NULL; cvNamedWindow("player1",CV_WINDOW_AUTOSIZE);//播放窗口初始化 //VideoFileName = "C://55.avi"; CvCapture* capture = cvCreateFileCapture(VideoFileName); IplImage* frame; //while(1){ frame = cvQueryFrame(capture);//抓一帧 double fps = cvGetCaptureProperty( capture, CV_CAP_PROP_FPS ); CvSize size = cvSize( (int)cvGetCaptureProperty(capture,CV_CAP_PROP_FRAME_WIDTH), (int)cvGetCaptureProperty(capture,CV_CAP_PROP_FRAME_HEIGHT) );//几个参数初始化 为了↓的函数 CvVideoWriter *writer = cvCreateVideoWriter( SaveFileName, -1, //这里实在没找到我这破本的解码库 暂时选一下 //CV_FOURCC(), fps, size ); IplImage* logpolar_frame = cvCreateImage( size, IPL_DEPTH_8U, 3 );//log转换 没用到 IplImage* img = 0; IplImage* Gray_sm = 0; IplImage* img_cut = 0; IplImage* CannyImg = 0; while ((frame=cvQueryFrame(capture))!=NULL){ img = cvRetrieveFrame(capture); IplImage *Gray = cvCreateImage(cvGetSize(img),IPL_DEPTH_8U,1);//转化为灰度 cvCvtColor(img,Gray,CV_BGR2GRAY); /*void cvSmooth( const CvArr* Gray, CvArr* Gray_sm, int smoothtype=CV_GAUSSIAN, int param1=3, int param2=0, double param3=0, double param4=0 );*/ //这里滤波函数没整明白 先试试看不处理能不能检测到 // // img_cut = cvCreateImage( cvGetSize(img),IPL_DEPTH_8U,1 /*img->depth, img->nChannels*/); //cvThreshold( Gray, img_cut ,50, 255, CV_THRESH_BINARY ); cvAdaptiveThreshold ( Gray,img_cut, 255, CV_ADAPTIVE_THRESH_MEAN_C, CV_THRESH_BINARY, 3,5); CannyImg = cvCreateImage(cvGetSize(img),IPL_DEPTH_8U,1); cvCanny(img_cut, CannyImg, 50, 150, 3); cvWriteFrame(writer,img);//写入存档文件 if(!frame) break; cvShowImage("player1",CannyImg); char c = cvWaitKey(50);//简单的播放控制 if (c==27) break; } cvReleaseCapture(&capture); cvDestroyWindow("player1"); // TODO: 在此添加控件通知处理程序代码 } //void CPlayDlg::OnEnChangeEdit1() //{ // // TODO: 如果该控件是 RICHEDIT 控件，则它将不会 // // 发送该通知，除非重写 CDialog::OnInitDialog() // // 函数并调用 CRichEditCtrl().SetEventMask()， // // 同时将 ENM_CHANGE 标志“或”运算到掩码中。 // // // TODO: 在此添加控件通知处理程序代码 //}