tesseract-ocr/dict/matchdefs.h

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/******************************************************************************
 **     Filename:    matchdefs.h
 **     Purpose:     Generic interface definitions for feature matchers.
 **     Author:      Dan Johnson
 **     History:     Fri Jan 19 09:21:25 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   MATCHDEFS_H
#define   MATCHDEFS_H

#include "host.h"
#include <stdio.h>
#include "unichar.h"

/* define the maximum number of classes defined for any matcher
  and the maximum class id for any matcher. This must be changed
  if more different classes need to be classified */
#define MAX_NUM_CLASSES   12288
#define MAX_CLASS_ID    (MAX_NUM_CLASSES - 1)

typedef UNICHAR_ID CLASS_ID;
#define NO_CLASS      (0)

typedef inT16 PROTO_ID;
#define NO_PROTO  (-1)

typedef uinT8 FEATURE_ID;
#define NO_FEATURE      255
#define NOISE_FEATURE   254
#define MISSING_PROTO   254
#define MAX_NUM_FEAT    40
#define MAX_FEATURE_ID    250

typedef FLOAT32 RATING;

typedef FLOAT32 CERTAINTY;

typedef struct
{
  CLASS_ID Class;
  RATING Rating;
  CERTAINTY Certainty;
}


MATCH_RESULT;

typedef MATCH_RESULT SORTED_CLASSES[MAX_CLASS_ID + 1];

/*----------------------------------------------------------------------------
          Public Function Prototypes
----------------------------------------------------------------------------*/
/* misc test functions for proto id's and feature id's */
#define IsValidFeature(Fid) ((Fid) < MAX_FEATURE_ID)
#define IsValidProto(Pid) ((Pid) >= 0)

#if defined(__STDC__) || defined(__cplusplus)
# define _ARGS(s) s
#else
# define _ARGS(s) ()
#endif

/* matchdefs.c */
int CompareMatchResults
_ARGS ((MATCH_RESULT * Result1, MATCH_RESULT * Result2));

void PrintMatchResult _ARGS ((FILE * File, MATCH_RESULT * MatchResult));

void PrintMatchResults
_ARGS ((FILE * File, int N, MATCH_RESULT MatchResults[]));

#undef _ARGS

/*----------------------------------------------------------------------------
        Global Data Definitions and Declarations
----------------------------------------------------------------------------*/
#endif