/usr/include/tesseract/featdefs.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: featdefs.h
** Purpose: Definitions of currently defined feature types.
** Author: Dan Johnson
** History: Mon May 21 08:28:01 1990, 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 FEATDEFS_H
#define FEATDEFS_H
/**----------------------------------------------------------------------------
Include Files and Type Defines
----------------------------------------------------------------------------**/
#include "ocrfeatures.h"
/* Enumerate the different types of features currently defined. */
#define NUM_FEATURE_TYPES 4
extern const char* kMicroFeatureType;
extern const char* kCNFeatureType;
extern const char* kIntFeatureType;
extern const char* kGeoFeatureType;
/* define error traps which can be triggered by this module.*/
#define ILLEGAL_SHORT_NAME 2000
/* A character is described by multiple sets of extracted features. Each
set contains a number of features of a particular type, for example, a
set of bays, or a set of closures, or a set of microfeatures. Each
feature consists of a number of parameters. All features within a
feature set contain the same number of parameters.*/
struct CHAR_DESC_STRUCT {
uinT32 NumFeatureSets;
FEATURE_SET FeatureSets[NUM_FEATURE_TYPES];
};
typedef CHAR_DESC_STRUCT *CHAR_DESC;
struct FEATURE_DEFS_STRUCT {
uinT32 NumFeatureTypes;
const FEATURE_DESC_STRUCT* FeatureDesc[NUM_FEATURE_TYPES];
const FEATURE_EXT_STRUCT* FeatureExtractors[NUM_FEATURE_TYPES];
int FeatureEnabled[NUM_FEATURE_TYPES];
};
typedef FEATURE_DEFS_STRUCT *FEATURE_DEFS;
/*----------------------------------------------------------------------
Generic functions for manipulating character descriptions
----------------------------------------------------------------------*/
void InitFeatureDefs(FEATURE_DEFS_STRUCT *featuredefs);
void FreeCharDescription(CHAR_DESC CharDesc);
CHAR_DESC NewCharDescription(const FEATURE_DEFS_STRUCT &FeatureDefs);
bool ValidCharDescription(const FEATURE_DEFS_STRUCT &FeatureDefs,
CHAR_DESC CharDesc);
void WriteCharDescription(const FEATURE_DEFS_STRUCT &FeatureDefs,
FILE *File, CHAR_DESC CharDesc);
CHAR_DESC ReadCharDescription(const FEATURE_DEFS_STRUCT &FeatureDefs,
FILE *File);
int ShortNameToFeatureType(const FEATURE_DEFS_STRUCT &FeatureDefs,
const char *ShortName);
/**----------------------------------------------------------------------------
Global Data Definitions and Declarations
----------------------------------------------------------------------------**/
extern const FEATURE_DESC_STRUCT MicroFeatureDesc;
extern const FEATURE_DESC_STRUCT PicoFeatDesc;
extern const FEATURE_DESC_STRUCT CharNormDesc;
extern const FEATURE_DESC_STRUCT OutlineFeatDesc;
extern const FEATURE_DESC_STRUCT IntFeatDesc;
extern const FEATURE_DESC_STRUCT GeoFeatDesc;
#endif
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