intfx.cpp File Reference

#include "intfx.h"
#include <cmath>
#include <mutex>
#include "allheaders.h"
#include "classify.h"
#include <tesseract/helpers.h>
#include "intmatcher.h"
#include "linlsq.h"
#include "normalis.h"
#include "statistc.h"
#include "trainingsample.h"

Go to the source code of this file.

Namespaces
	tesseract

Macros
#define	_USE_MATH_DEFINES

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)

Macro Definition Documentation

_USE_MATH_DEFINES

#define _USE_MATH_DEFINES

---

Include Files and Type Defines

Definition at line 20 of file intfx.cpp.

Function Documentation

FeatureDirection()

FCOORD FeatureDirection

(

uint8_t

theta

)

Definition at line 64 of file intfx.cpp.

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

InitIntegerFX()

void InitIntegerFX

(

)

---

Public Code

Definition at line 48 of file intfx.cpp.

                     {
  // Guards write access to AtanTable so we don't create it more than once.
  static std::mutex atan_table_mutex;
  static bool atan_table_init = false;
  std::lock_guard<std::mutex> guard(atan_table_mutex);
  if (!atan_table_init) {
    for (int i = 0; i < INT_CHAR_NORM_RANGE; ++i) {
      cos_table[i] = cos(i * 2 * M_PI / INT_CHAR_NORM_RANGE + M_PI);
      sin_table[i] = sin(i * 2 * M_PI / INT_CHAR_NORM_RANGE + M_PI);
    }
    atan_table_init = true;
  }