itkLabelImageToStatisticsLabelMapFilter.h

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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkLabelImageToStatisticsLabelMapFilter.h,v $
  Language:  C++
  Date:      $Date: 2009-08-10 11:54:59 $
  Version:   $Revision: 1.3 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even 
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/
#ifndef __itkLabelImageToStatisticsLabelMapFilter_h
#define __itkLabelImageToStatisticsLabelMapFilter_h

#include "itkImageToImageFilter.h"
#include "itkStatisticsLabelObject.h"
#include "itkLabelMap.h"
#include "itkLabelImageToLabelMapFilter.h"
#include "itkStatisticsLabelMapFilter.h"


namespace itk {

template<class TInputImage, class TFeatureImage, class TOutputImage=LabelMap< StatisticsLabelObject< ITK_TYPENAME TInputImage::PixelType, ::itk::GetImageDimension<TInputImage>::ImageDimension> > >
class ITK_EXPORT LabelImageToStatisticsLabelMapFilter : 
    public ImageToImageFilter<TInputImage, TOutputImage>
{
public:
  typedef LabelImageToStatisticsLabelMapFilter          Self;
  typedef ImageToImageFilter<TInputImage, TOutputImage> Superclass;
  typedef SmartPointer<Self>                            Pointer;
  typedef SmartPointer<const Self>                      ConstPointer;

  typedef TInputImage                              InputImageType;
  typedef typename InputImageType::Pointer         InputImagePointer;
  typedef typename InputImageType::ConstPointer    InputImageConstPointer;
  typedef typename InputImageType::RegionType      InputImageRegionType;
  typedef typename InputImageType::PixelType       InputImagePixelType;

  typedef TOutputImage                              OutputImageType;
  typedef typename OutputImageType::Pointer         OutputImagePointer;
  typedef typename OutputImageType::ConstPointer    OutputImageConstPointer;
  typedef typename OutputImageType::RegionType      OutputImageRegionType;
  typedef typename OutputImageType::PixelType       OutputImagePixelType;
  typedef typename OutputImageType::LabelObjectType LabelObjectType;
  
  typedef TFeatureImage                              FeatureImageType;
  typedef typename FeatureImageType::Pointer         FeatureImagePointer;
  typedef typename FeatureImageType::ConstPointer    FeatureImageConstPointer;
  typedef typename FeatureImageType::PixelType       FeatureImagePixelType;

  itkStaticConstMacro(InputImageDimension, unsigned int,
                      TInputImage::ImageDimension);
  itkStaticConstMacro(OutputImageDimension, unsigned int,
                      TInputImage::ImageDimension);
  itkStaticConstMacro(ImageDimension, unsigned int,
                      TInputImage::ImageDimension);

  typedef LabelImageToLabelMapFilter< InputImageType, OutputImageType >               LabelizerType;
  typedef StatisticsLabelMapFilter< OutputImageType, FeatureImageType >               LabelObjectValuatorType;

  itkNewMacro(Self);  

  itkTypeMacro(LabelImageToStatisticsLabelMapFilter, 
               ImageToImageFilter);

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro(InputEqualityComparableCheck,
    (Concept::EqualityComparable<InputImagePixelType>));
  itkConceptMacro(IntConvertibleToInputCheck,
    (Concept::Convertible<int, InputImagePixelType>));
  itkConceptMacro(InputOStreamWritableCheck,
    (Concept::OStreamWritable<InputImagePixelType>));
#endif

  itkSetMacro(BackgroundValue, OutputImagePixelType);
  itkGetConstMacro(BackgroundValue, OutputImagePixelType);

  itkSetMacro(ComputeFeretDiameter, bool);
  itkGetConstReferenceMacro(ComputeFeretDiameter, bool);
  itkBooleanMacro(ComputeFeretDiameter);

  itkSetMacro(ComputePerimeter, bool);
  itkGetConstReferenceMacro(ComputePerimeter, bool);
  itkBooleanMacro(ComputePerimeter);

  void SetFeatureImage(const TFeatureImage *input)
    {
    // Process object is not const-correct so the const casting is required.
    this->SetNthInput( 1, const_cast<TFeatureImage *>(input) );
    }

  const FeatureImageType * GetFeatureImage()
    {
    return static_cast<FeatureImageType*>(this->ProcessObject::GetInput(1));
    }

  void SetInput1(const InputImageType *input)
    {
    this->SetInput( input );
    }

  void SetInput2(const FeatureImageType *input)
    {
    this->SetFeatureImage( input );
    }

  itkSetMacro(ComputeHistogram, bool);
  itkGetConstReferenceMacro(ComputeHistogram, bool);
  itkBooleanMacro(ComputeHistogram);

  itkSetMacro(NumberOfBins, unsigned int);
  itkGetConstReferenceMacro(NumberOfBins, unsigned int);


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

  void GenerateInputRequestedRegion();

  void EnlargeOutputRequestedRegion(DataObject *itkNotUsed(output));
  
  void GenerateData();
  

private:
  LabelImageToStatisticsLabelMapFilter(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

  OutputImagePixelType  m_BackgroundValue;
  bool                  m_ComputeFeretDiameter;
  bool                  m_ComputePerimeter;
  unsigned int          m_NumberOfBins;
  bool                  m_ComputeHistogram;

}; // end of class

} // end namespace itk
  
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkLabelImageToStatisticsLabelMapFilter.txx"
#endif

#endif