itkMovingHistogramImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkMovingHistogramImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2008-08-06 11:33:08 $
  Version:   $Revision: 1.2 $

  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 __itkMovingHistogramImageFilter_h
#define __itkMovingHistogramImageFilter_h

#include "itkMovingHistogramImageFilterBase.h"

//#define zigzag

namespace itk {

template<class TInputImage, class TOutputImage, class TKernel, class THistogram >
class ITK_EXPORT MovingHistogramImageFilter : 
    public MovingHistogramImageFilterBase<TInputImage, TOutputImage, TKernel>
{
public:
  typedef MovingHistogramImageFilter Self;
  typedef MovingHistogramImageFilterBase<TInputImage, TOutputImage, TKernel>  Superclass;
  typedef SmartPointer<Self>        Pointer;
  typedef SmartPointer<const Self>  ConstPointer;

  itkNewMacro(Self);  

  itkTypeMacro(MovingHistogramImageFilter, 
               MovingHistogramImageFilter);

  typedef TInputImage                                 InputImageType;
  typedef TOutputImage                                OutputImageType;
  typedef typename TInputImage::RegionType            RegionType;
  typedef typename TInputImage::SizeType              SizeType;
  typedef typename TInputImage::IndexType             IndexType;
  typedef typename TInputImage::PixelType             PixelType;
  typedef typename TInputImage::OffsetType            OffsetType;
  typedef typename Superclass::OutputImageRegionType  OutputImageRegionType;
  typedef typename TOutputImage::PixelType            OutputPixelType;

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

  typedef TKernel                                     KernelType;

  typedef typename KernelType::ConstIterator          KernelIteratorType;

  typedef typename KernelType::SizeType               RadiusType;

  typedef typename std::list< OffsetType >            OffsetListType;

  typedef typename std::map< OffsetType, OffsetListType, typename OffsetType::LexicographicCompare >          OffsetMapType;

protected:
  MovingHistogramImageFilter();
  ~MovingHistogramImageFilter() {};
  
  void  ThreadedGenerateData (const OutputImageRegionType& 
                              outputRegionForThread,
                              int threadId);

  virtual THistogram * NewHistogram();

#ifndef zigzag
  // declare the type used to store the histogram
  typedef THistogram HistogramType;

  void pushHistogram(HistogramType * histogram, 
         const OffsetListType* addedList,
         const OffsetListType* removedList,
         const RegionType &inputRegion,
         const RegionType &kernRegion,
         const InputImageType* inputImage,
         const IndexType currentIdx);

  void printHist(const HistogramType &H);

#endif

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

}; // end of class

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

#endif

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