自己写了一个基于SVM的数字手写识别分享给大家;源码见附件, VS2010 + OpenCV2.4.9开发
识别效果如下图所示:
VS2010源程序如下:
- // HandWriteDlg.cpp : 实现文件
- //
- #include "stdafx.h"
- #include "HandWrite.h"
- #include "HandWriteDlg.h"
- #include "afxdialogex.h"
- #include "opencv2/opencv.hpp"
- #include "windows.h"
- #include "fstream"
- #include <vector>
- //#pragma comment(lib,"ml.lib")
- using namespace std;
- using namespace cv;
- #ifdef _DEBUG
- #define new DEBUG_NEW
- #endif
- // 用于应用程序“关于”菜单项的 CAboutDlg 对话框
- class CAboutDlg : public CDialogEx
- {
- public:
- CAboutDlg();
- // 对话框数据
- enum { IDD = IDD_ABOUTBOX };
- protected:
- virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持
- // 实现
- protected:
- DECLARE_MESSAGE_MAP()
- };
- CAboutDlg::CAboutDlg() : CDialogEx(CAboutDlg::IDD)
- {
- }
- void CAboutDlg::DoDataExchange(CDataExchange* pDX)
- {
- CDialogEx::DoDataExchange(pDX);
- }
- BEGIN_MESSAGE_MAP(CAboutDlg, CDialogEx)
- END_MESSAGE_MAP()
- // CHandWriteDlg 对话框
- CHandWriteDlg::CHandWriteDlg(CWnd* pParent /*=NULL*/)
- : CDialogEx(CHandWriteDlg::IDD, pParent)
- , m_strRes(_T(""))
- {
- m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
- }
- void CHandWriteDlg::DoDataExchange(CDataExchange* pDX)
- {
- CDialogEx::DoDataExchange(pDX);
- DDX_Text(pDX, IDC_EDIT_RESULT, m_strRes);
- }
- BEGIN_MESSAGE_MAP(CHandWriteDlg, CDialogEx)
- ON_WM_SYSCOMMAND()
- ON_WM_PAINT()
- ON_WM_QUERYDRAGICON()
- ON_WM_MOUSEMOVE()
- ON_WM_LBUTTONUP()
- ON_WM_LBUTTONDOWN()
- ON_BN_CLICKED(IDC_BUTTON_ERASE, &CHandWriteDlg::OnBnClickedButtonErase)
- ON_BN_CLICKED(IDC_BUTTON_IDENTIFY, &CHandWriteDlg::OnBnClickedButtonIdentify)
- END_MESSAGE_MAP()
- // CHandWriteDlg 消息处理程序
- BOOL CHandWriteDlg::OnInitDialog()
- {
- CDialogEx::OnInitDialog();
- // 将“关于...”菜单项添加到系统菜单中。
- // IDM_ABOUTBOX 必须在系统命令范围内。
- ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
- ASSERT(IDM_ABOUTBOX < 0xF000);
- CMenu* pSysMenu = GetSystemMenu(FALSE);
- if (pSysMenu != NULL)
- {
- BOOL bNameValid;
- CString strAboutMenu;
- bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX);
- ASSERT(bNameValid);
- if (!strAboutMenu.IsEmpty())
- {
- pSysMenu->AppendMenu(MF_SEPARATOR);
- pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
- }
- }
- // 设置此对话框的图标。当应用程序主窗口不是对话框时,框架将自动
- // 执行此操作
- SetIcon(m_hIcon, TRUE); // 设置大图标
- SetIcon(m_hIcon, FALSE); // 设置小图标
- // TODO: 在此添加额外的初始化代码
- down_flag = false;
- m_firstFlag = false;
- m_start.x = 0;
- m_start.y = 0;
- m_start.x = 0;
- m_start.y = 0;
- CWnd* pWnd = GetDlgItem(IDC_STATIC_HAND);
- pWnd->GetClientRect(&m_rect); //获取Picture控件的屏幕坐标区域
-
- //this->ScreenToClient(&m_rect);
- return TRUE; // 除非将焦点设置到控件,否则返回 TRUE
- }
- void CHandWriteDlg::OnSysCommand(UINT nID, LPARAM lParam)
- {
- if ((nID & 0xFFF0) == IDM_ABOUTBOX)
- {
- CAboutDlg dlgAbout;
- dlgAbout.DoModal();
- }
- else
- {
- CDialogEx::OnSysCommand(nID, lParam);
- }
- }
- // 如果向对话框添加最小化按钮,则需要下面的代码
- // 来绘制该图标。对于使用文档/视图模型的 MFC 应用程序,
- // 这将由框架自动完成。
- void CHandWriteDlg::OnPaint()
- {
- if (IsIconic())
- {
- CPaintDC dc(this); // 用于绘制的设备上下文
- SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);
- // 使图标在工作区矩形中居中
- 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;
- // 绘制图标
- dc.DrawIcon(x, y, m_hIcon);
- }
- else
- {
- CDialogEx::OnPaint();
- }
- }
- //当用户拖动最小化窗口时系统调用此函数取得光标
- //显示。
- HCURSOR CHandWriteDlg::OnQueryDragIcon()
- {
- return static_cast<HCURSOR>(m_hIcon);
- }
- void CHandWriteDlg::OnMouseMove(UINT nFlags, CPoint point)
- {
- // TODO: 在此添加消息处理程序代码和/或调用默认值
- if (!PtInRect(m_rect,CPoint(point)))
- {
- down_flag=false;
- }
- CWnd* pWnd = GetDlgItem(IDC_STATIC_HAND);
- CDC* dc = pWnd->GetDC();
- CPen pen(PS_SOLID,10,RGB(0,0,0));
- CPen *pOldPen=dc->SelectObject(&pen); //将其选入设备表
- if (down_flag)
- {
- dc->MoveTo(m_start); /* 开始画图 */
- dc->LineTo(point);
- m_start=point;
- }
- dc->SelectObject(pOldPen);
- ReleaseDC(dc);
- CDialogEx::OnMouseMove(nFlags, point);
- }
- void CHandWriteDlg::OnLButtonUp(UINT nFlags, CPoint point)
- {
- // TODO: 在此添加消息处理程序代码和/或调用默认值
- down_flag=false;
- CDialogEx::OnLButtonUp(nFlags, point);
- }
- void CHandWriteDlg::OnLButtonDown(UINT nFlags, CPoint point)
- {
- // TODO: 在此添加消息处理程序代码和/或调用默认值
- if (PtInRect(m_rect,CPoint(point)))
- {
- down_flag=true;
- m_firstFlag = true;
- m_start=point;
- }
- CDialogEx::OnLButtonDown(nFlags, point);
- }
- void CHandWriteDlg::OnBnClickedButtonErase()
- {
- // TODO: 在此添加控件通知处理程序代码
- m_firstFlag = false;
- Invalidate();
- }
- void CHandWriteDlg::OnBnClickedButtonIdentify()
- {
- // TODO: 在此添加控件通知处理程序代码
- if(m_firstFlag == false)
- {
- MessageBox(_T("请现在手写区写入数字!"));
- return ;
- }
-
- CvSVM svm;
- IplImage *test;
- CString strResult;
- char* str;
- CRect pRect;
- CWnd* pwnd=GetDlgItem(IDC_STATIC_HAND);//获取静态控件的指针 CRect pRect;
- CDC* pDC=pwnd->GetDC(); //使用控件指针创建绘图用的DC
- pwnd->GetClientRect(&pRect);
- int w, h;
- w = pRect.right - pRect.left;
- h = pRect.bottom - pRect.top;
- CBitmap bm;
- bm.CreateCompatibleBitmap(pDC, w, h);
- CDC memdc;
- memdc.CreateCompatibleDC(pDC);
- CBitmap*pOld=memdc.SelectObject(&bm);
- memdc.BitBlt( 0, 0, w, h, pDC, pRect.left, pRect.top, SRCCOPY );
- BITMAP btm;
- bm.GetBitmap(&btm);
- DWORD size=btm.bmWidthBytes*btm.bmHeight;
- LPSTR lpData=(LPSTR)::GlobalAlloc(GPTR,size);
- BITMAPINFOHEADER bih;
- bih.biBitCount=btm.bmBitsPixel;
- bih.biClrImportant=0;
- bih.biClrUsed=0;
- bih.biCompression=0;
- bih.biHeight=btm.bmHeight;
- bih.biPlanes=1;
- bih.biSize=sizeof(BITMAPINFOHEADER);
- bih.biSizeImage=size;
- bih.biWidth=btm.bmWidth;
- bih.biXPelsPerMeter=0;
- bih.biYPelsPerMeter=0;
- GetDIBits(memdc,bm,0,bih.biHeight,lpData,(BITMAPINFO*)&bih,DIB_RGB_COLORS);
- BITMAPFILEHEADER bfh;
- bfh.bfReserved1=bfh.bfReserved2=0;
- bfh.bfType=((WORD)('M'<< 8)|'B');
- bfh.bfSize=54+size;
- bfh.bfOffBits=54;
- CFile bf;
- if(bf.Open(_T("a.bmp"),CFile::modeCreate|CFile::modeWrite))
- {
- bf.Write(&bfh,sizeof(BITMAPFILEHEADER));
- bf.Write(&bih,sizeof(BITMAPINFOHEADER));
- bf.Write(lpData,size);
- ……………………
- …………限于本文篇幅 余下代码请从51黑下载附件…………
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所有资料51hei提供下载:
HandWrite.rar
(15.41 MB, 下载次数: 38)
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