itkHistogramToTextureFeaturesFilter.h

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/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  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.txt
 *
 *  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 itkHistogramToTextureFeaturesFilter_h
#define itkHistogramToTextureFeaturesFilter_h

#include "itkHistogram.h"
#include "itkMacro.h"
#include "itkProcessObject.h"
#include "itkSimpleDataObjectDecorator.h"

namespace itk
{
namespace Statistics
{
template< typename THistogram >
class ITK_TEMPLATE_EXPORT HistogramToTextureFeaturesFilter:public ProcessObject
{
public:
  typedef HistogramToTextureFeaturesFilter Self;
  typedef ProcessObject                    Superclass;
  typedef SmartPointer< Self >             Pointer;
  typedef SmartPointer< const Self >       ConstPointer;

  itkTypeMacro(HistogramToTextureFeaturesFilter, ProcessObject);

  itkNewMacro(Self);

  typedef THistogram                                    HistogramType;
  typedef typename HistogramType::Pointer               HistogramPointer;
  typedef typename HistogramType::ConstPointer          HistogramConstPointer;
  typedef typename HistogramType::MeasurementType       MeasurementType;
  typedef typename HistogramType::MeasurementVectorType MeasurementVectorType;
  typedef typename HistogramType::IndexType             IndexType;
  typedef typename HistogramType::AbsoluteFrequencyType AbsoluteFrequencyType;
  typedef typename HistogramType::RelativeFrequencyType RelativeFrequencyType;

  typedef typename HistogramType::TotalAbsoluteFrequencyType
  TotalAbsoluteFrequencyType;

  typedef typename HistogramType::TotalRelativeFrequencyType
  TotalRelativeFrequencyType;

  typedef std::vector< RelativeFrequencyType > RelativeFrequencyContainerType;

  using Superclass::SetInput;
  void SetInput(const HistogramType *histogram);

  const HistogramType * GetInput() const;

  typedef DataObject::Pointer DataObjectPointer;

  typedef SimpleDataObjectDecorator< MeasurementType > MeasurementObjectType;

  MeasurementType GetEnergy() const;

  const MeasurementObjectType * GetEnergyOutput() const;

  MeasurementType GetEntropy() const;

  const MeasurementObjectType * GetEntropyOutput() const;

  MeasurementType GetCorrelation() const;

  const MeasurementObjectType * GetCorrelationOutput() const;

  MeasurementType GetInverseDifferenceMoment() const;

  const MeasurementObjectType * GetInverseDifferenceMomentOutput() const;

  MeasurementType GetInertia() const;

  const MeasurementObjectType * GetInertiaOutput() const;

  MeasurementType GetClusterShade() const;

  const MeasurementObjectType * GetClusterShadeOutput() const;

  MeasurementType GetClusterProminence() const;

  const MeasurementObjectType * GetClusterProminenceOutput() const;

  MeasurementType GetHaralickCorrelation() const;

  const MeasurementObjectType * GetHaralickCorrelationOutput() const;

  typedef enum {
    Energy,
    Entropy,
    Correlation,
    InverseDifferenceMoment,
    Inertia,
    ClusterShade,
    ClusterProminence,
    HaralickCorrelation,
    InvalidFeatureName
    }  TextureFeatureName;

  MeasurementType GetFeature(TextureFeatureName name);

protected:
  HistogramToTextureFeaturesFilter();
  ~HistogramToTextureFeaturesFilter() ITK_OVERRIDE {}
  virtual void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;

  typedef ProcessObject::DataObjectPointerArraySizeType DataObjectPointerArraySizeType;
  using Superclass::MakeOutput;
  virtual DataObjectPointer MakeOutput(DataObjectPointerArraySizeType) ITK_OVERRIDE;

  virtual void GenerateData() ITK_OVERRIDE;

private:
  ITK_DISALLOW_COPY_AND_ASSIGN(HistogramToTextureFeaturesFilter);

  void ComputeMeansAndVariances(double & pixelMean, double & marginalMean,
                                double & marginalDevSquared, double & pixelVariance);

  RelativeFrequencyContainerType m_RelativeFrequencyContainer;
};
} // end of namespace Statistics
} // end of namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkHistogramToTextureFeaturesFilter.hxx"
#endif

#endif