mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-12-18 11:28:51 +08:00
520077bd41
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@164 d0cd1f9f-072b-0410-8dd7-cf729c803f20
104 lines
3.4 KiB
C
104 lines
3.4 KiB
C
/******************************************************************************
|
|
** Filename: stopper.h
|
|
** Purpose: Stopping criteria for word classifier.
|
|
** Author: Dan Johnson
|
|
** History: Wed May 1 09:42:57 1991, DSJ, Created.
|
|
**
|
|
** (c) Copyright Hewlett-Packard Company, 1988.
|
|
** Licensed under the Apache License, Version 2.0 (the "License");
|
|
** you may not use this file except in compliance with the License.
|
|
** You may obtain a copy of the License at
|
|
** http://www.apache.org/licenses/LICENSE-2.0
|
|
** Unless required by applicable law or agreed to in writing, software
|
|
** distributed under the License is distributed on an "AS IS" BASIS,
|
|
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
** See the License for the specific language governing permissions and
|
|
** limitations under the License.
|
|
******************************************************************************/
|
|
#ifndef STOPPER_H
|
|
#define STOPPER_H
|
|
|
|
/**----------------------------------------------------------------------------
|
|
Include Files and Type Defines
|
|
----------------------------------------------------------------------------**/
|
|
#include "choicearr.h"
|
|
#include "states.h"
|
|
|
|
typedef uinT8 BLOB_WIDTH;
|
|
|
|
typedef struct
|
|
{
|
|
inT16 index;
|
|
unsigned bad_length:8;
|
|
unsigned good_length:8;
|
|
} DANGERR;
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Variables
|
|
---------------------------------------------------------------------------*/
|
|
extern float CertaintyPerChar;
|
|
extern float NonDictCertainty;
|
|
extern float RejectCertaintyOffset;
|
|
extern int StopperDebugLevel;
|
|
|
|
/**----------------------------------------------------------------------------
|
|
Macros
|
|
----------------------------------------------------------------------------**/
|
|
#define DisableChoiceAccum() (KeepWordChoices = FALSE)
|
|
#define EnableChoiceAccum() (KeepWordChoices = TRUE)
|
|
|
|
/**----------------------------------------------------------------------------
|
|
Public Function Prototypes
|
|
----------------------------------------------------------------------------**/
|
|
int AcceptableChoice(CHOICES_LIST Choices,
|
|
A_CHOICE *BestChoice,
|
|
A_CHOICE *RawChoice,
|
|
DANGERR *fixpt);
|
|
|
|
int AcceptableResult(A_CHOICE *BestChoice, A_CHOICE *RawChoice);
|
|
|
|
int AlternativeChoicesWorseThan(FLOAT32 Threshold);
|
|
|
|
int CurrentBestChoiceIs(const char *Word, const char *Word_lengths);
|
|
|
|
FLOAT32 CurrentBestChoiceAdjustFactor();
|
|
|
|
int CurrentWordAmbig();
|
|
|
|
void DebugWordChoices();
|
|
|
|
void FilterWordChoices();
|
|
|
|
void FindClassifierErrors (FLOAT32 MinRating,
|
|
FLOAT32 MaxRating,
|
|
FLOAT32 RatingMargin, FLOAT32 Thresholds[]);
|
|
|
|
void InitStopperVars();
|
|
|
|
void InitChoiceAccum();
|
|
|
|
void LogNewRawChoice (A_CHOICE * Choice,
|
|
FLOAT32 AdjustFactor, float Certainties[]);
|
|
|
|
void LogNewSegmentation(PIECES_STATE BlobWidth);
|
|
|
|
void LogNewSplit(int Blob);
|
|
|
|
void LogNewWordChoice (A_CHOICE * Choice,
|
|
FLOAT32 AdjustFactor, float Certainties[]);
|
|
|
|
int NoDangerousAmbig(const char *Word,
|
|
const char *Word_lengths,
|
|
DANGERR *fixpt);
|
|
void EndDangerousAmbigs();
|
|
|
|
void SettupStopperPass1();
|
|
|
|
void SettupStopperPass2();
|
|
|
|
/**----------------------------------------------------------------------------
|
|
Global Data Definitions and Declarations
|
|
----------------------------------------------------------------------------**/
|
|
extern BOOL8 KeepWordChoices;
|
|
#endif
|