lprprocess.h

TRY2LPR-1.0开源的车牌识别核心

/*
* 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：LPRProcess.h
* 文件标识：LPR-02-06
* 摘要：牌照识别的图像处理部分
*
* 当前版本：1.0
* 作者：try2it.com
* 开始日期：2003年09月28日
* 完成日期：2003年09月30日
*/
#ifndef _LPRPROCESS_H_
#define _LPRPROCESS_H_

// 定义变量
#define PI  3.1415926536      

enum TPrjType
{
	H_FILTER,
	V_FILTER,
	IH_FILTER,
	IV_FILTER
};

typedef struct tagTAngle
{
	double HAngle;
	double VAngle;
}TAngle, *PAngle;

#if (defined(__cplusplus) || defined(c_plusplus))
extern  "C" {
#endif

int InteEqualize(PGrayImg pDestImg, PGrayImg pSrcImg);

int CalHistoGram(int HistoGram[], PGrayImg pSrcImg);

int MedianFilter(PGrayImg pDestImg, PGrayImg pSrcImg, int iFilterH, 
				               int iFilterW, int iFilterMX, int iFilterMY);

BYTE GetMedianNum(BYTE *aValue, int iLength);

int GetLPPos(RECT *lpRect, PGrayImg pSrcImg);

int GetLPYPos(int *pProject, int PrjLen, int *pStartYPos, int *pUpYPos, int *pDownYPos);

int GetLPXPos(int *pProject, int PrjLen, int *pLeftXPos, int *pRightXPos);

int Template(PGrayImg pDestImg, PGrayImg pSrcImg, int TemplateArr[], int TemplateN, double Coef);

int ProjectImg(int *pProject, PGrayImg pSrcImg,  TPrjType PrjType);

int ProjectFilter(int *pProject, int PrjLen, TPrjType PrjType, int LPAccurateHeight=40);

int TwoPixelCarImg(PGrayImg pDestImg, PGrayImg pSrcImg, int Threshold);

int GetSubImg(PGrayImg pDestImg, PGrayImg pSrcImg, RECT Rect);

int GetSubColorImg(PColorImg pDestImg, PColorImg pSrcImg, RECT Rect);

int RecoLPColor(TColorID *pLPColorID, PColorImg pSrcImg);

int TwoPixelLPImg(PGrayImg pDestImg, PGrayImg pSrcImg, 
				    double MaxBlackRatio, double MinBlackRatio, int *pThreshold);

int Invert(PGrayImg pDestImg, PGrayImg pSrcImg);

int RectifyLP(PGrayImg pDestImg, PGrayImg pSrcImg, PGrayImg pModelImg);

int Diff(PGrayImg pDestImg, PGrayImg pSrcImg, TPrjType PrjType);

int HoughTrans(PAngle pAngle, PGrayImg pSrcImg, TPrjType PrjType);

int GetLPAccuratePos(RECT *lpRect, PGrayImg pSrcImg);

int GetLPAccurateXPos(int *pProject, int PrjLen, int LPHeight, int *pLeftXPos, int *pRightXPos);

int GetLPAccurateYPos(int *pProject, int PrjLen, int *pUpYPos, int *pDownYPos);

int GetLPCharPos(int *pCharCount, RECT LPCharRect[], PGrayImg pSrcImg);

int OutLineProject(int *pProject, PGrayImg pSrcImg);

int OutLineProjectFilter(int *pProject, int PrjLen, int LPHeight);

int Merge2(int *pProject, int PrjLen, RECT LPCharRect[], 
		        int MergeID[], int StartID, int EndID, int CharHeight);

int Merge3(int *pProject, int PrjLen, RECT LPCharRect[], 
		        int MergeID[], int StartID, int EndID, int CharHeight);

int Merge4(int *pProject, int PrjLen, RECT LPCharRect[], 
		        int MergeID[], int StartID, int EndID, int CharHeight);

int Merge5(int *pProject, int PrjLen, RECT LPCharRect[], 
		        int MergeID[], int StartID, int EndID, int CharHeight);

int Merge6(int *pProject, int PrjLen, RECT LPCharRect[], 
		        int MergeID[], int StartID, int EndID, int CharHeight);

int Merge7(int *pProject, int PrjLen, RECT LPCharRect[], 
		        int MergeID[], int StartID, int EndID, int CharHeight);

int Merge8(int *pProject, int PrjLen, RECT LPCharRect[], 
		        int MergeID[], int StartID, int EndID, int CharHeight);

int IsChar(int CharLeft, int CharRight, int CharHeight);


int ReadParam(char *szFileName);


int SaveParam(int LPHeight=80,        
			  int LPWidth=220,         
              int LPAccurateHeight=40,  
              int Threshold=160,       
			  int Threshold_HLP=100,   
              int LeftOffset=0,        
              int RightOffset=0,     
              int TopOffset=0,          
              int BottomOffset=0,    
			  char *szFileName="GDCLPR.ini");

RECT GetManualCutRect(int *pLeftOffset, int *pRightOffset, int *pTopOffset, int *pBottomOffset, int OriWidth, int OriHeight);


#if (defined(__cplusplus) || defined(c_plusplus))
}
#endif

#endif /* _LPRHELPER_H_ */