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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkOpeningByReconstructionImageFilter.h,v $
Language: C++
Date: $Date: 2006-03-22 16:26:43 $
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 __itkOpeningByReconstructionImageFilter_h
#define __itkOpeningByReconstructionImageFilter_h
#include "itkImageToImageFilter.h"
namespace itk {
/** \class OpeningByReconstructionImageFilter
* \brief Opening by reconstruction of an image
*
* This filter preserves regions, in the foreground, that can
* completely contain the structuring element. At the same time, this
* filter eliminates all other regions of foreground pixels. Contrary
* to the mophological opening, the opening by reconstruction
* preserves the shape of the components that are not removed by
* erosion. The opening by reconstruction of an image "f" is defined
* as:
*
* OpeningByReconstruction(f) = DilationByRecontruction(f, Erosion(f)).
*
* Opening by reconstruction not only removes structures destroyed by
* the erosion, but also levels down the contrast of the brightest
* regions. If PreserveIntensities is on, a subsequent reconstruction
* by dilation using a marker image that is the original image for all
* unaffected pixels.
*
* Opening by reconstruction is described in Chapter 6.3.9 of Pierre
* Soille's book "Morphological Image Analysis: Principles and
* Applications", Second Edition, Springer, 2003.
*
* \author Gatan Lehmann. Biologie du Dveloppement et de la Reproduction, INRA of Jouy-en-Josas, France.
*
* \sa GrayscaleMorphologicalOpeningImageFilter
* \ingroup ImageEnhancement MathematicalMorphologyImageFilters
*/
template<class TInputImage, class TOutputImage, class TKernel>
class ITK_EXPORT OpeningByReconstructionImageFilter :
public ImageToImageFilter<TInputImage, TOutputImage>
{
public:
/** Standard class typedefs. */
typedef OpeningByReconstructionImageFilter Self;
typedef ImageToImageFilter<TInputImage, TOutputImage>
Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Some convenient typedefs. */
typedef TInputImage InputImageType;
typedef TOutputImage OutputImageType;
typedef typename InputImageType::Pointer InputImagePointer;
typedef typename InputImageType::ConstPointer InputImageConstPointer;
typedef typename InputImageType::RegionType InputImageRegionType;
typedef typename InputImageType::PixelType InputImagePixelType;
typedef typename OutputImageType::Pointer OutputImagePointer;
typedef typename OutputImageType::ConstPointer OutputImageConstPointer;
typedef typename OutputImageType::RegionType OutputImageRegionType;
typedef typename OutputImageType::PixelType OutputImagePixelType;
/** Kernel typedef. */
typedef TKernel KernelType;
/** ImageDimension constants */
itkStaticConstMacro(InputImageDimension, unsigned int,
TInputImage::ImageDimension);
itkStaticConstMacro(OutputImageDimension, unsigned int,
TOutputImage::ImageDimension);
/** Standard New method. */
itkNewMacro(Self);
/** Runtime information support. */
itkTypeMacro(OpeningByReconstructionImageFilter,
ImageToImageFilter);
/** Set kernel (structuring element). */
itkSetMacro(Kernel, KernelType);
/** Get the kernel (structuring element). */
itkGetConstReferenceMacro(Kernel, KernelType);
/**
* Set/Get whether the connected components are defined strictly by
* face connectivity or by face+edge+vertex connectivity. Default is
* FullyConnectedOff. For objects that are 1 pixel wide, use
* FullyConnectedOn.
*/
itkSetMacro(FullyConnected, bool);
itkGetConstReferenceMacro(FullyConnected, bool);
itkBooleanMacro(FullyConnected);
/**
* Set/Get whether the original intensities of the image retained for
* those pixels unaffected by the opening by reconstrcution. If Off,
* the output pixel contrast will be reduced. */
itkSetMacro(PreserveIntensities, bool);
itkGetConstReferenceMacro(PreserveIntensities, bool);
itkBooleanMacro(PreserveIntensities);
#ifdef ITK_USE_CONCEPT_CHECKING
/** Begin concept checking */
itkConceptMacro(InputEqualityComparableCheck,
(Concept::EqualityComparable<InputImagePixelType>));
/** End concept checking */
#endif
protected:
OpeningByReconstructionImageFilter();
~OpeningByReconstructionImageFilter() {};
void PrintSelf(std::ostream& os, Indent indent) const;
/** OpeningByReconstructionImageFilter needs the entire input be
* available. Thus, it needs to provide an implementation of
* GenerateInputRequestedRegion(). */
void GenerateInputRequestedRegion() ;
/** OpeningByReconstructionImageFilter will produce the entire output. */
void EnlargeOutputRequestedRegion(DataObject *itkNotUsed(output));
void GenerateData();
private:
OpeningByReconstructionImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
/** kernel or structuring element to use. */
KernelType m_Kernel ;
bool m_FullyConnected;
bool m_PreserveIntensities;
} ; // end of class
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkOpeningByReconstructionImageFilter.txx"
#endif
#endif
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