itkScalarImageToRunLengthMatrixFilter.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 __itkScalarImageToRunLengthMatrixFilter_h
#define __itkScalarImageToRunLengthMatrixFilter_h

#include "itkImage.h"
#include "itkHistogram.h"
#include "itkNumericTraits.h"
#include "itkVectorContainer.h"

namespace itk
{
namespace Statistics
{

template<class TImageType, class THistogramFrequencyContainer =
  DenseFrequencyContainer2>
class ScalarImageToRunLengthMatrixFilter : public ProcessObject
{
public:
  typedef ScalarImageToRunLengthMatrixFilter  Self;
  typedef ProcessObject                       Superclass;
  typedef SmartPointer<Self>                  Pointer;
  typedef SmartPointer<const Self>            ConstPointer;

  itkTypeMacro( ScalarImageToRunLengthMatrixFilter, ProcessObject );

  itkNewMacro( Self );

  typedef TImageType                                      ImageType;
  typedef typename ImageType::Pointer                     ImagePointer;
  typedef typename ImageType::ConstPointer                ImageConstPointer;
  typedef typename ImageType::PixelType                   PixelType;
  typedef typename ImageType::IndexType                   IndexType;
  typedef typename ImageType::RegionType                  RegionType;
  typedef typename ImageType::SizeType                    RadiusType;
  typedef typename ImageType::OffsetType                  OffsetType;
  typedef VectorContainer<unsigned char, OffsetType>      OffsetVector;
  typedef typename OffsetVector::Pointer                  OffsetVectorPointer;
  typedef typename ImageType::PointType                   PointType;

  typedef typename NumericTraits<PixelType>::RealType     MeasurementType;
  typedef typename NumericTraits<PixelType>::RealType     RealType;

  typedef Histogram<MeasurementType, THistogramFrequencyContainer>
                                                          HistogramType;
  typedef typename HistogramType::Pointer                 HistogramPointer;
  typedef typename HistogramType::ConstPointer            HistogramConstPointer;
  typedef typename HistogramType::MeasurementVectorType   MeasurementVectorType;

  itkStaticConstMacro( ImageDimension, unsigned int,
    TImageType::ImageDimension );

  itkStaticConstMacro( DefaultBinsPerAxis, unsigned int, 256 );

  itkSetObjectMacro( Offsets, OffsetVector );

  void SetOffset( const OffsetType offset );

  itkGetConstObjectMacro( Offsets, OffsetVector );

  itkSetMacro( NumberOfBinsPerAxis, unsigned int );

  itkGetConstMacro( NumberOfBinsPerAxis, unsigned int );

  void SetPixelValueMinMax( PixelType min, PixelType max );

  itkGetConstMacro( Min, PixelType );

  itkGetConstMacro( Max, PixelType );

  void SetDistanceValueMinMax( RealType min, RealType max );

  itkGetConstMacro( MinDistance, RealType );

  itkGetConstMacro( MaxDistance, RealType );

  using Superclass::SetInput;
  void SetInput( const ImageType *image );

  const ImageType * GetInput() const;

  void SetMaskImage( const ImageType *image );

  const ImageType * GetMaskImage() const;

  const HistogramType * GetOutput() const;

  itkSetMacro( InsidePixelValue, PixelType );
  itkGetConstMacro( InsidePixelValue, PixelType );

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

  typedef DataObject::Pointer DataObjectPointer;

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

  virtual void GenerateData();

  void NormalizeOffsetDirection(OffsetType &offset);

private:

  unsigned int             m_NumberOfBinsPerAxis;
  PixelType                m_Min;
  PixelType                m_Max;
  RealType                 m_MinDistance;
  RealType                 m_MaxDistance;
  PixelType                m_InsidePixelValue;

  MeasurementVectorType    m_LowerBound;
  MeasurementVectorType    m_UpperBound;
  OffsetVectorPointer      m_Offsets;

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

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

#endif