itkRobustAutomaticThresholdImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkRobustAutomaticThresholdImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2009-04-23 03:43:42 $
  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 __itkRobustAutomaticThresholdImageFilter_h
#define __itkRobustAutomaticThresholdImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkRobustAutomaticThresholdCalculator.h"

namespace itk {

template<class TInputImage, class TGradientImage=TInputImage, class TOutputImage=TInputImage>
class ITK_EXPORT RobustAutomaticThresholdImageFilter : 
    public ImageToImageFilter<TInputImage, TOutputImage>
{
public:
  typedef RobustAutomaticThresholdImageFilter           Self;
  typedef ImageToImageFilter<TInputImage,TOutputImage>  Superclass;
  typedef SmartPointer<Self>                            Pointer;
  typedef SmartPointer<const Self>                      ConstPointer;

  itkNewMacro(Self);  

  itkTypeMacro(RobustAutomaticThresholdImageFilter, ImageToImageFilter);

  typedef TInputImage                          InputImageType;
  typedef TGradientImage                       GradientImageType;

  typedef typename TInputImage::PixelType      InputPixelType;
  typedef typename TOutputImage::PixelType     OutputPixelType;
  typedef typename TGradientImage::PixelType   GradientPixelType;

  typedef typename TInputImage::Pointer        InputImagePointer;
  typedef typename TOutputImage::Pointer       OutputImagePointer;
  typedef typename TGradientImage::Pointer     GradientImagePointer;

  typedef typename TInputImage::SizeType       InputSizeType;
  typedef typename TInputImage::IndexType      InputIndexType;
  typedef typename TInputImage::RegionType     InputImageRegionType;
  typedef typename TOutputImage::SizeType      OutputSizeType;
  typedef typename TOutputImage::IndexType     OutputIndexType;
  typedef typename TOutputImage::RegionType    OutputImageRegionType;

  typedef RobustAutomaticThresholdCalculator< TInputImage, TGradientImage >
                                               CalculatorType;
  
  itkStaticConstMacro(InputImageDimension, unsigned int,
                      TInputImage::ImageDimension );
  itkStaticConstMacro(OutputImageDimension, unsigned int,
                      TOutputImage::ImageDimension );

  itkSetMacro(OutsideValue,OutputPixelType);

  itkGetConstMacro(OutsideValue,OutputPixelType);

  itkSetMacro(InsideValue,OutputPixelType);

  itkGetConstMacro(InsideValue,OutputPixelType);

  itkGetConstMacro(Threshold,InputPixelType);

  itkSetMacro(Pow, double);
  itkGetConstMacro(Pow, double);

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro(OutputComparableCheck,
    (Concept::Comparable<OutputPixelType>));
  itkConceptMacro(OutputOStreamWritableCheck,
    (Concept::OStreamWritable<OutputPixelType>));

#endif

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

  GradientImageType * GetGradientImage()
    {
    return static_cast<GradientImageType*>(const_cast<DataObject *>(this->ProcessObject::GetInput(1)));
    }


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

  void SetInput2(GradientImageType *input)
    {
    this->SetGradientImage( input );
    }

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

  void GenerateInputRequestedRegion();
  void GenerateData ();

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

  double              m_Pow;
  InputPixelType      m_Threshold;
  OutputPixelType     m_InsideValue;
  OutputPixelType     m_OutsideValue;


}; // end of class

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

#endif

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