光学字符识别源码

/* /////gtamilocr.cpp////////, main gui module with all preprcoessing functions GNU Tamil OCR Copyright (C) 2004,2005 Visweswara R, visweswara@users.sourceforge.net This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. This program is just a GUI outline version, does not include recognition functions contributions: GUI enhancement,splash screen ,noise removal functions by Janagaraj V,janagaraj@users.sourceforge.net */ #include "gtamilocr.h" ///debug function MyFrame* logwin; wxLogWindow *lg; wxFFile filr; wxTextCtrl* logtext; wxLog *logtarget; ////debugfunction BEGIN_EVENT_TABLE(MyFeatureDialog,wxDialog) END_EVENT_TABLE() MyFeatureDialog::MyFeatureDialog( wxWindow *parent, wxWindowID id, const wxString &title, const wxPoint &position, const wxSize& size, long style ) : wxDialog( parent, id, title, position, size, style ) { // dialog function Features Select for MyFeatureDialog Features_Select( this, TRUE ); } //------------------------------------------------------------------------------ // MyTamilFrame //------------------------------------------------------------------------------ // event table for MyTamilFrame BEGIN_EVENT_TABLE(MyTamilFrame,wxFrame) EVT_MENU(ID_ABOUT, MyTamilFrame::OnAbout) EVT_MENU(ID_QUIT, MyTamilFrame::OnQuit) EVT_CLOSE(MyTamilFrame::OnCloseWindow) EVT_SIZE(MyTamilFrame::OnSize) EVT_MENU( ID_FEATURE, MyTamilFrame::OnFeature ) EVT_MENU( ID_ABOUT, MyTamilFrame::OnAbout ) EVT_MENU( ID_OPEN, MyTamilFrame::OnOpen ) EVT_MENU( ID_SAVE_IMAGE, MyTamilFrame::OnSave ) EVT_MENU( ID_SAVEIMAGEAS, MyTamilFrame::OnSaveimageas ) EVT_MENU( ID_SAVETEXTAS, MyTamilFrame::OnSavetextas ) EVT_MENU( ID_READ, MyTamilFrame::OnRead ) EVT_MENU( ID_BATCH, MyTamilFrame::OnBatch ) EVT_MENU( ID_OPTIONS, MyTamilFrame::OnOptions ) EVT_MENU( ID_CLEAR, MyTamilFrame::OnClear ) EVT_MENU( ID_REVIMAGE, MyTamilFrame::OnRevimage ) EVT_MENU( ID_90, MyTamilFrame::OnRotate90 ) EVT_MENU( ID_180, MyTamilFrame::OnRotate180 ) EVT_MENU( ID_270, MyTamilFrame::OnRotate270 ) EVT_MENU( ID_SKEW, MyTamilFrame::OnSkew ) EVT_MENU( ID_FEATURE, MyTamilFrame::OnFeature ) EVT_MENU( ID_ZOOMIN, MyTamilFrame::OnZoomin ) EVT_MENU( ID_ZOOMOUT, MyTamilFrame::OnZoomout ) EVT_MENU( ID_FIT, MyTamilFrame::OnFit ) EVT_MENU( ID_FONTS, MyTamilFrame::OnFont ) EVT_MENU( ID_SEGMENT, MyTamilFrame::OnSegment ) EVT_MENU( ID_USING, MyTamilFrame::OnUsinghelp ) EVT_TOOL( ID_TOOLOPEN, MyTamilFrame::OnOpen ) EVT_TOOL( ID_TOOLSAVE, MyTamilFrame::OnSave ) EVT_TOOL( ID_TOOLSAVEAS, MyTamilFrame::OnSaveimageas ) EVT_TOOL( ID_TOOLZOOMIN, MyTamilFrame::OnZoomin ) EVT_TOOL( ID_TOOLZOOMOUT, MyTamilFrame::OnZoomout ) EVT_TOOL( ID_TOOLSKEW, MyTamilFrame::OnSkew ) EVT_TOOL( ID_TOOLREAD, MyTamilFrame::OnRead ) END_EVENT_TABLE() MyTamilFrame::MyTamilFrame( wxWindow *parent, wxWindowID id, const wxString &title, const wxPoint &position, const wxSize& size, long style ) : wxFrame( parent, id, title, position, size, style ) { CreateMyMenuBar(); CreateMyToolBar(); CreateStatusBar(1); SetStatusText( wxT("Welcome To GNU Tamil OCR") ); imagebox=new MyImageBox(this,-1,"Imagebox",wxDefaultPosition, wxSize(500,500), wxMINIMIZE_BOX | wxMAXIMIZE_BOX | wxRESIZE_BORDER | wxCAPTION ); imagebox->Show(); tamiltextctrl=new wxTextCtrl(this,-1," ",wxDefaultPosition,wxDefaultSize, wxTE_MULTILINE |wxTE_LEFT , wxDefaultValidator, wxTextCtrlNameStr); tamiltextctrl->SetFont(wxFont(16,wxNORMAL, wxNORMAL, wxBOLD, 0, "tscarial")); ////debug////// logwin = new MyFrame(this, -1, "Log Window",wxPoint(100,100),wxSize(500,300)); logwin->Show(); logtarget->SetActiveTarget( new wxLogTextCtrl(logwin->logtext) ); ///end debug///// } void MyTamilFrame::CreateMyMenuBar() { SetMenuBar( MyMenuBarFunc() ); } void MyTamilFrame::CreateMyToolBar() { wxToolBar *tb = CreateToolBar(/* wxTB_VERTICAL*/wxTB_HORIZONTAL|wxTB_TEXT|wxTB_3DBUTTONS ); MyToolBarFunc( tb ); } void MyTamilFrame::OnUsinghelp( wxCommandEvent &event ) { } /** function to call segment and train dialog */ void MyTamilFrame::OnSegment( wxCommandEvent &event ) { train=new MyTrain(this,-1,"Segement"); train->Show(); //wxMessageBox("Segment"); } void MyTamilFrame::OnFont( wxCommandEvent &event ) { wxFontData data; wxFontDialog fond(this,data); if(fond.ShowModal()==wxID_OK) { wxFontData fdata = fond.GetFontData(); wxFont font = fdata.GetChosenFont(); wxColour colour = fdata.GetColour(); tamiltextctrl->SetFont(font); } } void MyTamilFrame::OnFit( wxCommandEvent &event ) { zoomlevel = 1; freshredraw(); imagebox->Refresh(); } /** function to zoom out */ void MyTamilFrame::OnZoomout( wxCommandEvent &event ) { switch(zoomlevel) { case 3: zoomlevel=3 ; break; case 0: zoomlevel=1 ; break; case 1: zoomlevel=2 ; break; case 2: zoomlevel=3 ; break; } freshredraw(); imagebox->Refresh(); } /** function to zoom in */ void MyTamilFrame::OnZoomin( wxCommandEvent &event ) { switch(zoomlevel) { case 3: zoomlevel=2 ; break; case 2: zoomlevel=1 ; break; case 1: zoomlevel=0 ; break; case 0: zoomlevel=0; break; } freshredraw(); imagebox->Refresh(); } void MyTamilFrame::OnSkew( wxCommandEvent &event ) { CImage Img,Imgtemp; CCoordinateTransform ctran; double skew1,skew2,skewangle; Img.Load("temp1.bmp"); Imgtemp.CopyConvert(1,Img); wxBeginBusyCursor(wxHOURGLASS_CURSOR); skew1=findskew(Imgtemp); ctran.ScaleAndRotateAuto(Imgtemp,Imgtemp,1,1,skew1,1); skew2=findskew(Imgtemp); skewangle=(skew1+skew2); ctran.ScaleAndRotateAuto(Img,Imgtemp,1,1,skewangle,1); Imgtemp.Save("temp1.bmp"); wxEndBusyCursor(); wxLogMessage("%f",skew1*180/3.14); freshredraw(); imagebox->Refresh(true, NULL); wxMessageBox("Skew Corrected"); } /** function to rotate image 270 degree */ void MyTamilFrame::OnRotate270( wxCommandEvent &event ) { CImage Img; Img.Load("temp1.bmp"); Img.Rotate90(3); Img.Save("temp1.bmp"); freshredraw(); imagebox->Refresh(); } /** function to rotate image 180 degree */ void MyTamilFrame::OnRotate180( wxCommandEvent &event ) { CImage Img; Img.Load("temp1.bmp"); Img.Rotate90(2); Img.Save("temp1.bmp"); freshredraw(); imagebox->Refresh(); } /** function to rotate image 90 degree */ void MyTamilFrame::OnRotate90( wxCommandEvent &event ) { CImage Img; Img.Load("temp1.bmp"); Img.Rotate90(1); Img.Save("temp1.bmp"); freshredraw(); imagebox->Refresh(); } /** function to invert the colur of image */ void MyTamilFrame::OnRevimage( wxCommandEvent &event ) { CImage Img; Img.Load("temp1.bmp"); Img.Invert(); Img.Save("temp1.bmp"); freshredraw(); imagebox->Refresh(); } /** function to clear "Salt and Pepper Noise" */ void MyTamilFrame::OnClear( wxCommandEvent &event ) { CImage Img,Imgdest; int i,j; int x,y; wxBeginBusyCur