intfx.cpp File Reference

#include "intfx.h"
#include "allheaders.h"
#include "ccutil.h"
#include "classify.h"
#include "const.h"
#include "helpers.h"
#include "intmatcher.h"
#include "linlsq.h"
#include "ndminx.h"
#include "normalis.h"
#include "statistc.h"
#include "trainingsample.h"

Go to the source code of this file.

Namespaces
	tesseract

Functions
void	InitIntegerFX ()
FCOORD	FeatureDirection (uint8_t theta)
TrainingSample *	tesseract::BlobToTrainingSample (const TBLOB &blob, bool nonlinear_norm, INT_FX_RESULT_STRUCT *fx_info, GenericVector< INT_FEATURE_STRUCT > *bl_features)
uint8_t	tesseract::NormalizeDirection (uint8_t dir, const FCOORD &unnormed_pos, const DENORM &denorm, const DENORM *root_denorm)

Variables
tesseract::CCUtilMutex	atan_table_mutex

Function Documentation

FeatureDirection()

FCOORD FeatureDirection

(

uint8_t

theta

)

Definition at line 70 of file intfx.cpp.

                                       {
  return FCOORD(cos_table[theta], sin_table[theta]);
}

InitIntegerFX()

void InitIntegerFX

(

)

---

Public Code

Definition at line 55 of file intfx.cpp.

                     {
  static bool atan_table_init = false;
  atan_table_mutex.Lock();
  if (!atan_table_init) {
    for (int i = 0; i < INT_CHAR_NORM_RANGE; ++i) {
      cos_table[i] = cos(i * 2 * PI / INT_CHAR_NORM_RANGE + PI);
      sin_table[i] = sin(i * 2 * PI / INT_CHAR_NORM_RANGE + PI);
    }
    atan_table_init = true;
  }
  atan_table_mutex.Unlock();
}

Variable Documentation

atan_table_mutex

tesseract::CCUtilMutex atan_table_mutex

Definition at line 48 of file intfx.cpp.