itkMultiScaleLoGImageFilter.h

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/*=========================================================================
 Authors: The GoFigure Dev. Team.
 at Megason Lab, Systems biology, Harvard Medical school, 2009-11

 Copyright (c) 2009-11, President and Fellows of Harvard College.
 All rights reserved.

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 this list of conditions and the following disclaimer.
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 this list of conditions and the following disclaimer in the documentation
 and/or other materials provided with the distribution.
 Neither the name of the  President and Fellows of Harvard College
 nor the names of its contributors may be used to endorse or promote
 products derived from this software without specific prior written
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=========================================================================*/

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkMultiScaleLoGImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2007/04/01 23:13:46 $
  Version:   $Revision: 1.6 $

  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 __itkMultiScaleLoGImageFilter_h
#define __itkMultiScaleLoGImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkImage.h"
#include "itkMatrix.h"
#include <itkLaplacianRecursiveGaussianImageFilter.h>
#include "itkImageRegionIterator.h"
#include "itkImageRegionConstIterator.h"

namespace itk
{
template< class TInputImage, class TOutputImage = TInputImage >
class MultiScaleLoGImageFilter:
  public ImageToImageFilter< TInputImage, TOutputImage >
{
public:
  typedef MultiScaleLoGImageFilter                        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::PixelType    InputPixelType;

  typedef TOutputImage                        OutputImageType;
  typedef typename OutputImageType::Pointer   OutputImagePointer;
  typedef typename OutputImageType::PixelType OutputPixelType;

  itkStaticConstMacro(ImageDimension, unsigned int,
                      ::itk::GetImageDimension< InputImageType >::ImageDimension);

  typedef LaplacianRecursiveGaussianImageFilter< InputImageType, OutputImageType >
  LaplacianFilterType;
  typedef typename LaplacianFilterType::Pointer LaplacianFilterPointer;

  typedef ImageRegionIterator< OutputImageType > IteratorType;

  itkNewMacro(Self);

  itkSetMacro(SigmaMin, double);
  itkGetMacro(SigmaMin, double);

  itkSetMacro(SigmaMax, double);
  itkGetMacro(SigmaMax, double);

  itkSetMacro(NumberOfSigmaSteps, int);
  itkGetMacro(NumberOfSigmaSteps, int);
protected:
  MultiScaleLoGImageFilter();
  ~MultiScaleLoGImageFilter() {}
  void PrintSelf(std::ostream & os, Indent indent) const;

  void GenerateData(void);

private:
  void UpdateMaximumResponse();

  double ComputeSigmaValue(int scaleLevel);

  //purposely not implemented
  MultiScaleLoGImageFilter(const Self &);
  void operator=(const Self &); //purposely not implemented

  double m_SigmaMin;
  double m_SigmaMax;
  int    m_NumberOfSigmaSteps;

  LaplacianFilterPointer m_LaplacianFilter;
};
} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkMultiScaleLoGImageFilter.txx"
#endif

#endif