tesseract/dict/stopper.h

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/******************************************************************************
** 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);
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, DANGERR *fixpt);
void EndDangerousAmbigs();
void SettupStopperPass1();
void SettupStopperPass2();
/**----------------------------------------------------------------------------
Global Data Definitions and Declarations
----------------------------------------------------------------------------**/
extern BOOL8 KeepWordChoices;
#endif