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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkGrayscaleFillholeImageFilter.h,v $
Language: C++
Date: $Date: 2007-10-16 14:22:34 $
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 __itkFillholeImageFilter_h
#define __itkFillholeImageFilter_h
#include "itkImageToImageFilter.h"
namespace itk {
/** \class GrayscaleFillholeImageFilter
* \brief Remove local minima not connected to the boundary of the image.
*
* GrayscaleFillholeImageFilter fills holes in a grayscale image.
* Holes are local minima in the grayscale topography that are not
* connected to boundaries of the image. Gray level values adjacent to
* a hole are extrapolated across the hole.
*
* This filter is used to smooth over local minima without affecting
* the values of local maxima. If you take the difference between the
* output of this filter and the original image (and perhaps threshold
* the difference above a small value), you'll obtain a map of the
* local minima.
*
* This filter uses the GrayscaleGeodesicErodeImageFilter. It
* provides its own input as the "mask" input to the geodesic
* erosion. The "marker" image for the geodesic erosion is
* constructed such that boundary pixels match the boundary pixels of
* the input image and the interior pixels are set to the maximum
* pixel value in the input image.
*
* Geodesic morphology and the Fillhole algorithm is described in
* Chapter 6 of Pierre Soille's book "Morphological Image Analysis:
* Principles and Applications", Second Edition, Springer, 2003.
*
* \sa GrayscaleGeodesicErodeImageFilter
* \sa MorphologyImageFilter, GrayscaleErodeImageFilter, GrayscaleFunctionErodeImageFilter, BinaryErodeImageFilter
* \ingroup ImageEnhancement MathematicalMorphologyImageFilters
*/
template<class TInputImage, class TOutputImage>
class ITK_EXPORT GrayscaleFillholeImageFilter :
public ImageToImageFilter<TInputImage, TOutputImage>
{
public:
/** Standard class typedefs. */
typedef GrayscaleFillholeImageFilter 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;
/** ImageDimension constants */
itkStaticConstMacro(InputImageDimension, unsigned int,
TInputImage::ImageDimension);
itkStaticConstMacro(OutputImageDimension, unsigned int,
TOutputImage::ImageDimension);
/** Standard New method. */
itkNewMacro(Self);
/** Runtime information support. */
itkTypeMacro(GrayscaleFillholeImageFilter,
ImageToImageFilter);
/** \deprecated
* Get the number of iterations used to produce the current
* output. This method is scheduled for removal since the
* implementation now uses a noniterative solution. */
unsigned long GetNumberOfIterationsUsed()
{
itkLegacyBodyMacro(itk::GrayscaleFillholeImageFilter::GetNumberOfIterationsUsed, 2.2);
return m_NumberOfIterationsUsed;
};
/**
* 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);
#ifdef ITK_USE_CONCEPT_CHECKING
/** Begin concept checking */
itkConceptMacro(InputOStreamWritableCheck,
(Concept::OStreamWritable<InputImagePixelType>));
/** End concept checking */
#endif
protected:
GrayscaleFillholeImageFilter();
~GrayscaleFillholeImageFilter() {};
void PrintSelf(std::ostream& os, Indent indent) const;
/** GrayscaleFillholeImageFilter needs the entire input be
* available. Thus, it needs to provide an implementation of
* GenerateInputRequestedRegion(). */
void GenerateInputRequestedRegion() ;
/** GrayscaleFillholeImageFilter will produce the entire output. */
void EnlargeOutputRequestedRegion(DataObject *itkNotUsed(output));
/** Single-threaded version of GenerateData. This filter delegates
* to GrayscaleGeodesicErodeImageFilter. */
void GenerateData();
private:
GrayscaleFillholeImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
unsigned long m_NumberOfIterationsUsed;
bool m_FullyConnected;
} ; // end of class
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkGrayscaleFillholeImageFilter.txx"
#endif
#endif
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