/usr/include/tesseract/adaptive.h is in libtesseract-dev 3.02.01-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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** Filename: adaptive.h
** Purpose: Interface to adaptive matcher.
** Author: Dan Johnson
** History: Fri Mar 8 10:00:49 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 ADAPTIVE_H
#define ADAPTIVE_H
/*----------------------------------------------------------------------------
Include Files and Type Defines
----------------------------------------------------------------------------*/
#include "oldlist.h"
#include "intproto.h"
#include <stdio.h>
typedef struct
{
uinT16 ProtoId;
uinT16 dummy;
PROTO_STRUCT Proto;
}
TEMP_PROTO_STRUCT;
typedef TEMP_PROTO_STRUCT *TEMP_PROTO;
typedef struct
{
uinT8 NumTimesSeen;
uinT8 ProtoVectorSize;
PROTO_ID MaxProtoId;
LIST ContextsSeen;
BIT_VECTOR Protos;
int FontinfoId; // font information inferred from pre-trained templates
} TEMP_CONFIG_STRUCT;
typedef TEMP_CONFIG_STRUCT *TEMP_CONFIG;
typedef struct
{
UNICHAR_ID *Ambigs;
int FontinfoId; // font information inferred from pre-trained templates
} PERM_CONFIG_STRUCT;
typedef PERM_CONFIG_STRUCT *PERM_CONFIG;
typedef union
{
TEMP_CONFIG Temp;
PERM_CONFIG Perm;
} ADAPTED_CONFIG;
typedef struct
{
uinT8 NumPermConfigs;
uinT8 MaxNumTimesSeen; // maximum number of times any TEMP_CONFIG was seen
uinT8 dummy[2]; // (cut at matcher_min_examples_for_prototyping)
BIT_VECTOR PermProtos;
BIT_VECTOR PermConfigs;
LIST TempProtos;
ADAPTED_CONFIG Config[MAX_NUM_CONFIGS];
} ADAPT_CLASS_STRUCT;
typedef ADAPT_CLASS_STRUCT *ADAPT_CLASS;
typedef struct
{
INT_TEMPLATES Templates;
int NumNonEmptyClasses;
uinT8 NumPermClasses;
uinT8 dummy[3];
ADAPT_CLASS Class[MAX_NUM_CLASSES];
} ADAPT_TEMPLATES_STRUCT;
typedef ADAPT_TEMPLATES_STRUCT *ADAPT_TEMPLATES;
/*----------------------------------------------------------------------------
Public Function Prototypes
----------------------------------------------------------------------------*/
#define NumNonEmptyClassesIn(Template) ((Template)->NumNonEmptyClasses)
#define IsEmptyAdaptedClass(Class) ((Class)->NumPermConfigs == 0 && \
(Class)->TempProtos == NIL_LIST)
#define ConfigIsPermanent(Class,ConfigId) \
(test_bit ((Class)->PermConfigs, ConfigId))
#define MakeConfigPermanent(Class,ConfigId) \
(SET_BIT ((Class)->PermConfigs, ConfigId))
#define MakeProtoPermanent(Class,ProtoId) \
(SET_BIT ((Class)->PermProtos, ProtoId))
#define TempConfigFor(Class,ConfigId) \
((Class)->Config[ConfigId].Temp)
#define PermConfigFor(Class,ConfigId) \
((Class)->Config[ConfigId].Perm)
#define IncreaseConfidence(TempConfig) \
((TempConfig)->NumTimesSeen++)
void AddAdaptedClass(ADAPT_TEMPLATES Templates,
ADAPT_CLASS Class,
CLASS_ID ClassId);
void FreeTempProto(void *arg);
void FreeTempConfig(TEMP_CONFIG Config);
ADAPT_CLASS NewAdaptedClass();
void free_adapted_class(ADAPT_CLASS adapt_class);
void free_adapted_templates(ADAPT_TEMPLATES templates);
TEMP_CONFIG NewTempConfig(int MaxProtoId, int FontinfoId);
TEMP_PROTO NewTempProto();
ADAPT_CLASS ReadAdaptedClass(FILE *File);
PERM_CONFIG ReadPermConfig(FILE *File);
TEMP_CONFIG ReadTempConfig(FILE *File);
void WriteAdaptedClass(FILE *File, ADAPT_CLASS Class, int NumConfigs);
void WritePermConfig(FILE *File, PERM_CONFIG Config);
void WriteTempConfig(FILE *File, TEMP_CONFIG Config);
#endif
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