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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkConnectedThresholdImageFilter.h
Language: C++
Date: $Date$
Version: $Revision$
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 __itkConnectedThresholdImageFilter_h
#define __itkConnectedThresholdImageFilter_h
#include "itkImage.h"
#include "itkImageToImageFilter.h"
#include "itkSimpleDataObjectDecorator.h"
namespace itk {
/** \class ConnectedThresholdImageFilter
* \brief Label pixels that are connected to a seed and lie within a range of values
*
* ConnectedThresholdImageFilter labels pixels with ReplaceValue that are
* connected to an initial Seed AND lie within a Lower and Upper
* threshold range.
*
* \ingroup RegionGrowingSegmentation
*/
template <class TInputImage, class TOutputImage>
class ITK_EXPORT ConnectedThresholdImageFilter:
public ImageToImageFilter<TInputImage,TOutputImage>
{
public:
/** Standard class typedefs. */
typedef ConnectedThresholdImageFilter Self;
typedef ImageToImageFilter<TInputImage,TOutputImage> Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(ConnectedThresholdImageFilter,
ImageToImageFilter);
typedef TInputImage InputImageType;
typedef typename InputImageType::Pointer InputImagePointer;
typedef typename InputImageType::ConstPointer InputImageConstPointer;
typedef typename InputImageType::RegionType InputImageRegionType;
typedef typename InputImageType::PixelType InputImagePixelType;
typedef typename InputImageType::IndexType IndexType;
typedef typename InputImageType::SizeType SizeType;
typedef TOutputImage OutputImageType;
typedef typename OutputImageType::Pointer OutputImagePointer;
typedef typename OutputImageType::RegionType OutputImageRegionType;
typedef typename OutputImageType::PixelType OutputImagePixelType;
void PrintSelf ( std::ostream& os, Indent indent ) const;
/** Set seed point. */
void SetSeed ( const IndexType & seed );
void AddSeed(const IndexType & seed);
/** Clear the seed list. */
void ClearSeeds ();
/** Set/Get value to replace thresholded pixels. Pixels that lie *
* within Lower and Upper (inclusive) will be replaced with this
* value. The default is 1. */
itkSetMacro(ReplaceValue, OutputImagePixelType);
itkGetConstMacro(ReplaceValue, OutputImagePixelType);
/** Type of DataObjects to use for scalar inputs */
typedef SimpleDataObjectDecorator<InputImagePixelType> InputPixelObjectType;
/** Set Upper and Lower Threshold inputs as values */
virtual void SetUpper( InputImagePixelType );
virtual void SetLower( InputImagePixelType );
/** Set Threshold inputs that are connected to the pipeline */
virtual void SetUpperInput( const InputPixelObjectType *);
virtual void SetLowerInput( const InputPixelObjectType *);
/** Get Upper and Lower Threshold inputs as values */
virtual InputImagePixelType GetUpper() const;
virtual InputImagePixelType GetLower() const;
/** Get Threshold inputs that are connected to the pipeline */
virtual InputPixelObjectType * GetUpperInput();
virtual InputPixelObjectType * GetLowerInput();
/** Image dimension constants */
itkStaticConstMacro(InputImageDimension, unsigned int,
TInputImage::ImageDimension);
itkStaticConstMacro(OutputImageDimension, unsigned int,
TOutputImage::ImageDimension);
#ifdef ITK_USE_CONCEPT_CHECKING
/** Begin concept checking */
itkConceptMacro(OutputEqualityComparableCheck,
(Concept::EqualityComparable<OutputImagePixelType>));
itkConceptMacro(InputEqualityComparableCheck,
(Concept::EqualityComparable<InputImagePixelType>));
itkConceptMacro(InputConvertibleToOutputCheck,
(Concept::Convertible<InputImagePixelType, OutputImagePixelType>));
itkConceptMacro(SameDimensionCheck,
(Concept::SameDimension<InputImageDimension, OutputImageDimension>));
itkConceptMacro(IntConvertibleToInputCheck,
(Concept::Convertible<int, InputImagePixelType>));
itkConceptMacro(OutputOStreamWritableCheck,
(Concept::OStreamWritable<OutputImagePixelType>));
/** End concept checking */
#endif
/** Face connectivity is 4 connected in 2D, 6 connected in 3D, 2*n in ND
* Full connectivity is 8 connected in 2D, 26 connected in 3D, 3^n-1 in ND
* Default is to use FaceConnectivity. */
typedef enum { FaceConnectivity, FullConnectivity } ConnectivityEnumType;
#ifdef ITK_USE_REVIEW
/** Type of connectivity to use (fully connected OR 4(2D), 6(3D),
* 2*N(ND) connectivity) */
itkSetEnumMacro( Connectivity, ConnectivityEnumType );
itkGetEnumMacro( Connectivity, ConnectivityEnumType );
#endif
protected:
ConnectedThresholdImageFilter();
~ConnectedThresholdImageFilter(){};
std::vector<IndexType> m_SeedList;
InputImagePixelType m_Lower;
InputImagePixelType m_Upper;
OutputImagePixelType m_ReplaceValue;
// Override since the filter needs all the data for the algorithm
void GenerateInputRequestedRegion();
// Override since the filter produces the entire dataset
void EnlargeOutputRequestedRegion(DataObject *output);
void GenerateData();
// Type of connectivity to use.
ConnectivityEnumType m_Connectivity;
private:
ConnectedThresholdImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkConnectedThresholdImageFilter.txx"
#endif
#endif
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