www.pudn.com > try2LPR-1.0.rar > Reco.cpp

/* 
* Copyright (c) 2003, try2it.com 
* All rights reserved. 
* 
* 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. 
* 
* 文件名称：Reco.cpp 
* 文件标识：LPR-03-001 
* 摘要：牌照识别的字符识别Dll 
* 
* 当前版本：1.0 
* 作者：try2it.com 
* 开始日期：2003年09月15日 
* 完成日期：2003年10月10日 
*/ 
 
#include "stdafx.h" 
#include  
#include "../include/types.h" 
#include "RecoHelper.h" 
#include "RecoProcess.h" 
 
#include "Reco.h" 
 
char pPath[MAX_PATH]; 
TGrayImg ModelImg[35];    
 
BOOL APIENTRY DllMain( HANDLE hModule,  
                       DWORD  ul_reason_for_call,  
                       LPVOID lpReserved 
					 ) 
{ 
	int i, res; 
 
	switch (ul_reason_for_call) 
	{ 
		case DLL_PROCESS_ATTACH: 
 
			for (i=0; i<=35; i++) 
			{ 
				if (i==1 || i==18) continue; 
				 
				res = LoadTemplate((HMODULE)hModule, &ModelImg[i], i); 
				if (0 == res) 
					return FALSE; 
			} 
			break; 
 
		case DLL_THREAD_ATTACH: 
			break; 
		case DLL_THREAD_DETACH: 
			break; 
        case DLL_PROCESS_DETACH: 
 
			FreeAllMemNode(); 
 
			break; 
    } 
    return TRUE; 
} 
 
RECO_API int CALLAGREEMENT GetReco(char *pLPNo, PGrayImg pLPCharImg, TLPNumType LPNumType) 
{ 
	TGrayImg TempImg, LPCharImg;    
 
	int ModelID, StartID, EndID; 
 
	int MatchNum[36]; 
	int MaxMatchNum; 
	int CarSignID; 
 
	int res = 1; 
 
	*pLPNo = '?'; 
	if (pLPCharImg->pImg != NULL) 
	{ 
		switch (LPNumType) 
		{ 
		case LPNUM_CHN:     
			break; 
 
		case LPNUM_ENNUM:   
			StartID = 0; 
			EndID = 35; 
			break; 
 
		case LPNUM_NUM:     
			StartID = 0; 
			EndID = 9; 
			break; 
 
		case LPNUM_EN: 
			StartID = 10; 
			EndID = 35; 
			break; 
 
		default: 
			return 0; 
		} 
 
		ModelID = StartID; 
 
		MaxMatchNum = 0x7FFFFFFF; 
 
		res = GetStdImg(&LPCharImg, pLPCharImg); 
		if (0 == res) 
			return 0; 
 
		if (LPCharImg.Width*1.0/LPCharImg.Height<0.25) 
			CarSignID = 1; 
		else 
		{ 
			for (ModelID=StartID; ModelID<=EndID; ModelID++) 
			{ 
				if (ModelID == 1) 
					continue;   
				if (ModelID == 'I'-'A'+10) 
					continue; 
				 
				if (LPNumType == LPNUM_ENNUM) 
					if (ModelID == 'O'-'A'+10) 
						continue; 
 
				res = Zoom(&TempImg, &LPCharImg, ModelImg[ModelID].Width*1.0/LPCharImg.Width, 
								 ModelImg[ModelID].Height*1.0/LPCharImg.Height); 
				if (0 == res) 
					return 0; 
 
				res = ImgMatch(&MatchNum[ModelID], &TempImg, &ModelImg[ModelID]); 
				if (0 == res) 
					return 0; 
 
				if (MaxMatchNum > MatchNum[ModelID]) 
				{ 
					MaxMatchNum = MatchNum[ModelID]; 
					CarSignID = ModelID; 
				} 
 
				res = GrayImg_Free(&TempImg); 
				if (0 == res) 
					return 0; 
			} 
		} 
		 
		RecoAgain(&CarSignID, &LPCharImg, MatchNum, LPNumType); 
 
		if (CarSignID > 9) 
			*pLPNo = 'A'+CarSignID-10; 
		else 
			*pLPNo = '0'+CarSignID; 
 
		res = GrayImg_Free(&LPCharImg); 
		if (0 == res) 
			return 0; 
	} 
 
	return res; 
} 
 
RECO_API int CALLAGREEMENT SetReco() 
{ 
	return 1; 
}