evMultiscaleFeatureDetector.h

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/*
 *
 * EVITA: Efficient Visualization of Terascale Datasets
 * Copyright (C) 2000-2016  Team Evita
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 * 
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 675 Mass Ave, Cambridge,
 * MA 02139, USA.
 *
 */


#ifndef __evMultiscaleFeatureDetector_h
#define __evMultiscaleFeatureDetector_h


#include "evFeatureDetector.h"


class evMultiscaleFeatureDetector : public evProcessObject
{
 public:
  evMultiscaleFeatureDetector(void);
  virtual ~evMultiscaleFeatureDetector(void);
  
  virtual const evString GetClassName(void) const
    {
      return(evString("evMultiscaleFeatureDetector"));
    }
  
  void SetFeatureDetector(const evFeatureDetector *feature_detector);
  const evFeatureDetector *GetFeatureDetector(void) const;

  void SetNumScales(const unsigned int num_scales);
  unsigned int GetNumScales(void) const;

  int DetectFeatures(const evDataset &dataset,
                     evScalarField &significance_map) const;

  void PrintSelf(const int tabbing) const;

 protected:
  
 private:
  const evFeatureDetector *FeatureDetector;
  unsigned int NumScales;

  int CreateMultiscaleSignificanceMaps(const evDataset &dataset,
                                       evScalarField *significance_maps) const;
  int PropagateZeros(evScalarField *significance_maps) const;

  class PropagateZerosFilter : public evWaveletTransform
    {
    public:
      PropagateZerosFilter(void);
      virtual const evString GetClassName(void) const
        {
          return(evString("PropagateZerosFilter"));
        }
    };
};


inline evMultiscaleFeatureDetector::evMultiscaleFeatureDetector(void) :
  FeatureDetector(NULL), NumScales(EVDEFAULT_NUMSCALES)
{
}


inline evMultiscaleFeatureDetector::~evMultiscaleFeatureDetector(void)
{
}


inline void
evMultiscaleFeatureDetector::SetFeatureDetector(const evFeatureDetector
                                                *feature_detector)
{
  this->FeatureDetector = feature_detector;
}


inline const
evFeatureDetector *evMultiscaleFeatureDetector::GetFeatureDetector(void) const
{
  return(this->FeatureDetector);
}


inline void evMultiscaleFeatureDetector::SetNumScales(const unsigned int
                                                      num_scales)
{
  this->NumScales = num_scales;
}


inline unsigned int evMultiscaleFeatureDetector::GetNumScales(void) const
{
  return(this->NumScales);
}


inline evMultiscaleFeatureDetector::PropagateZerosFilter::PropagateZerosFilter(void)
{
  int length = 3;

  this->Wavelet.implementation = QCCWAVWAVELET_IMPLEMENTATION_FILTERBANK;
  this->Wavelet.boundary = QCCWAVWAVELET_BOUNDARY_SYMMETRIC_EXTENSION;
  this->Wavelet.filter_bank.orthogonality = QCCWAVFILTERBANK_BIORTHOGONAL;
  this->Wavelet.filter_bank.lowpass_synthesis_filter.length = length;
  this->Wavelet.filter_bank.lowpass_synthesis_filter.causality =
    QCCFILTER_SYMMETRICWHOLE;
  this->Wavelet.filter_bank.lowpass_synthesis_filter.coefficients = 
    QccVectorAlloc(length);
  for (int cnt = 0; cnt < length; cnt++)
    this->Wavelet.filter_bank.lowpass_synthesis_filter.coefficients[cnt] = 1;
}


#endif