tesseract  5.0.0
featdefs.h
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1 /******************************************************************************
2  ** Filename: featdefs.h
3  ** Purpose: Definitions of currently defined feature types.
4  ** Author: Dan Johnson
5  **
6  ** (c) Copyright Hewlett-Packard Company, 1988.
7  ** Licensed under the Apache License, Version 2.0 (the "License");
8  ** you may not use this file except in compliance with the License.
9  ** You may obtain a copy of the License at
10  ** http://www.apache.org/licenses/LICENSE-2.0
11  ** Unless required by applicable law or agreed to in writing, software
12  ** distributed under the License is distributed on an "AS IS" BASIS,
13  ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  ** See the License for the specific language governing permissions and
15  ** limitations under the License.
16  ******************************************************************************/
17 
18 #ifndef FEATDEFS_H
19 #define FEATDEFS_H
20 
21 #include "ocrfeatures.h"
22 
23 #include <array> // for std::array
24 #include <string> // for std::string
25 
26 namespace tesseract {
27 
28 /* Enumerate the different types of features currently defined. */
29 #define NUM_FEATURE_TYPES 4
30 extern TESS_API const char *const kMicroFeatureType;
31 extern TESS_API const char *const kCNFeatureType;
32 extern TESS_API const char *const kIntFeatureType;
33 extern TESS_API const char *const kGeoFeatureType;
34 
35 /* A character is described by multiple sets of extracted features. Each
36  set contains a number of features of a particular type, for example, a
37  set of bays, or a set of closures, or a set of microfeatures. Each
38  feature consists of a number of parameters. All features within a
39  feature set contain the same number of parameters.*/
40 
42  int32_t NumFeatureTypes;
44 };
46 
50  CHAR_DESC_STRUCT(const FEATURE_DEFS_STRUCT &FeatureDefs) {
51  NumFeatureSets = FeatureDefs.NumFeatureTypes;
52  }
53 
57  for (size_t i = 0; i < NumFeatureSets; i++) {
58  delete FeatureSets[i];
59  }
60  }
61 
62  uint32_t NumFeatureSets;
63  std::array<FEATURE_SET_STRUCT *, NUM_FEATURE_TYPES> FeatureSets;
64 };
65 
66 /*----------------------------------------------------------------------
67  Generic functions for manipulating character descriptions
68 ----------------------------------------------------------------------*/
70 void InitFeatureDefs(FEATURE_DEFS_STRUCT *featuredefs);
71 
72 bool ValidCharDescription(const FEATURE_DEFS_STRUCT &FeatureDefs, CHAR_DESC_STRUCT *CharDesc);
73 
74 void WriteCharDescription(const FEATURE_DEFS_STRUCT &FeatureDefs, CHAR_DESC_STRUCT *CharDesc, std::string &str);
75 
78 
80 uint32_t ShortNameToFeatureType(const FEATURE_DEFS_STRUCT &FeatureDefs, const char *ShortName);
81 
89 extern const FEATURE_DESC_STRUCT IntFeatDesc;
90 extern const FEATURE_DESC_STRUCT GeoFeatDesc;
91 
92 } // namespace tesseract
93 
94 #endif
#define NUM_FEATURE_TYPES
Definition: featdefs.h:29
const char *const kCNFeatureType
Definition: featdefs.cpp:34
uint32_t ShortNameToFeatureType(const FEATURE_DEFS_STRUCT &FeatureDefs, const char *ShortName)
Definition: featdefs.cpp:203
CHAR_DESC_STRUCT * ReadCharDescription(const FEATURE_DEFS_STRUCT &FeatureDefs, FILE *File)
Definition: featdefs.cpp:172
bool ValidCharDescription(const FEATURE_DEFS_STRUCT &FeatureDefs, CHAR_DESC_STRUCT *CharDesc)
Definition: featdefs.cpp:131
const FEATURE_DESC_STRUCT GeoFeatDesc
TESS_API const FEATURE_DESC_STRUCT PicoFeatDesc
const char *const kGeoFeatureType
Definition: featdefs.cpp:36
void WriteCharDescription(const FEATURE_DEFS_STRUCT &FeatureDefs, CHAR_DESC_STRUCT *CharDesc, std::string &str)
Definition: featdefs.cpp:109
const FEATURE_DESC_STRUCT IntFeatDesc
const char *const kIntFeatureType
Definition: featdefs.cpp:35
void InitFeatureDefs(FEATURE_DEFS_STRUCT *featuredefs)
Definition: featdefs.cpp:87
const FEATURE_DESC_STRUCT CharNormDesc
const char *const kMicroFeatureType
Definition: featdefs.cpp:33
const FEATURE_DESC_STRUCT OutlineFeatDesc
const FEATURE_DESC_STRUCT MicroFeatureDesc
const FEATURE_DESC_STRUCT * FeatureDesc[NUM_FEATURE_TYPES]
Definition: featdefs.h:43
CHAR_DESC_STRUCT(const FEATURE_DEFS_STRUCT &FeatureDefs)
Definition: featdefs.h:50
std::array< FEATURE_SET_STRUCT *, NUM_FEATURE_TYPES > FeatureSets
Definition: featdefs.h:63
#define TESS_API
Definition: export.h:34