tesseract-ocr/classify/normfeat.h File Reference

#include "ocrfeatures.h"

Go to the source code of this file.

Defines
#define	LENGTH_COMPRESSION   (10.0)
Enumerations
enum	NORM_PARAM_NAME { CharNormY, CharNormLength, CharNormRx, CharNormRy }
Functions
FLOAT32	ActualOutlineLength (FEATURE Feature)
FEATURE_SET	ExtractCharNormFeatures (TBLOB *Blob, const DENORM &denorm)

---

Define Documentation

#define LENGTH_COMPRESSION   (10.0)

---------------------------------------------------------------------------- Include Files and Type Defines ----------------------------------------------------------------------------

Definition at line 26 of file normfeat.h.

---

Enumeration Type Documentation

enum NORM_PARAM_NAME

Enumerator:

CharNormY
CharNormLength
CharNormRx
CharNormRy

Definition at line 28 of file normfeat.h.

             {
  CharNormY, CharNormLength, CharNormRx, CharNormRy
} NORM_PARAM_NAME;

---

Function Documentation

FLOAT32 ActualOutlineLength

(

FEATURE

Feature

)

---------------------------------------------------------------------------- Public Function Prototypes ----------------------------------------------------------------------------

---------------------------------------------------------------------------- Include Files and Type Defines ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- Public Code ----------------------------------------------------------------------------

Definition at line 32 of file normfeat.cpp.

                                             {
  return (Feature->Params[CharNormLength] * LENGTH_COMPRESSION);
}

FEATURE_SET ExtractCharNormFeatures	(	TBLOB *	Blob,
		const DENORM &	denorm
	)

Definition at line 62 of file normfeat.cpp.

                                                                       {
  FEATURE_SET feature_set = NewFeatureSet(1);
  FEATURE feature = NewFeature(&CharNormDesc);

  INT_FEATURE_ARRAY blfeatures;
  INT_FEATURE_ARRAY cnfeatures;
  INT_FX_RESULT_STRUCT FXInfo;

  ExtractIntFeat(blob, denorm, blfeatures, cnfeatures, &FXInfo);

  feature->Params[CharNormY] =
      MF_SCALE_FACTOR * (FXInfo.Ymean - BASELINE_OFFSET);
  feature->Params[CharNormLength] =
      MF_SCALE_FACTOR * FXInfo.Length / LENGTH_COMPRESSION;
  feature->Params[CharNormRx] = MF_SCALE_FACTOR * FXInfo.Rx;
  feature->Params[CharNormRy] = MF_SCALE_FACTOR * FXInfo.Ry;

  AddFeature(feature_set, feature);

  return feature_set;
}                                /* ExtractCharNormFeatures */