classify/normfeat.h

/******************************************************************************
 **	Filename:    normfeat.h
 **	Purpose:     Definition of character normalization features.
 **	Author:      Dan Johnson
 **	History:     12/14/90, 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   NORMFEAT_H
#define   NORMFEAT_H

/**----------------------------------------------------------------------------
          Include Files and Type Defines
----------------------------------------------------------------------------**/
#include "ocrfeatures.h"
#include "tessclas.h"
#include "fxdefs.h"

#define LENGTH_COMPRESSION  (10.0)

typedef enum
{ CharNormY, CharNormLength, CharNormRx, CharNormRy }
NORM_PARAM_NAME;

/**----------------------------------------------------------------------------
          Public Function Prototypes
----------------------------------------------------------------------------**/
FLOAT32 ActualOutlineLength(FEATURE Feature); 

FEATURE_SET ExtractCharNormFeatures(TBLOB *Blob, LINE_STATS *LineStats); 

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

/* normfeat.c
FLOAT32 ActualOutlineLength
    _ARGS((FEATURE Feature));

FEATURE_SET ExtractCharNormFeatures
    _ARGS((BLOB *Blob,
  LINE_STATS *LineStats));

#undef _ARGS
*/

/**----------------------------------------------------------------------------
        Global Data Definitions and Declarations
----------------------------------------------------------------------------**/
extern FEATURE_DESC_STRUCT CharNormDesc;
#endif