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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkLabelShapeKeepNObjectsImageFilter.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 __itkLabelShapeKeepNObjectsImageFilter_h
#define __itkLabelShapeKeepNObjectsImageFilter_h
#include "itkImageToImageFilter.h"
#include "itkShapeLabelObject.h"
#include "itkLabelMap.h"
#include "itkLabelImageToLabelMapFilter.h"
#include "itkShapeLabelMapFilter.h"
#include "itkShapeKeepNObjectsLabelMapFilter.h"
#include "itkLabelMapToLabelImageFilter.h"
namespace itk {
/** \class LabelShapeKeepNObjectsImageFilter
* \brief keep N objects according to their shape attributes
*
* LabelShapeKeepNObjectsImageFilter keep the N objects in a labeled image
* with the highest (or lowest) attribute value. The attributes are the ones
* of the ShapeLabelObject.
*
* \author Gaetan Lehmann. Biologie du Developpement et de la Reproduction, INRA de Jouy-en-Josas, France.
*
* This implementation was taken from the Insight Journal paper:
* http://hdl.handle.net/1926/584 or
* http://www.insight-journal.org/browse/publication/176
*
* \sa ShapeLabelObject, BinaryShapeKeepNObjectsImageFilter, LabelStatisticsKeepNObjectsImageFilter
* \ingroup ImageEnhancement MathematicalMorphologyImageFilters
*/
template<class TInputImage>
class ITK_EXPORT LabelShapeKeepNObjectsImageFilter :
public ImageToImageFilter<TInputImage, TInputImage>
{
public:
/** Standard class typedefs. */
typedef LabelShapeKeepNObjectsImageFilter Self;
typedef ImageToImageFilter<TInputImage, TInputImage> Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Some convenient typedefs. */
typedef TInputImage InputImageType;
typedef TInputImage 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,
TInputImage::ImageDimension);
itkStaticConstMacro(ImageDimension, unsigned int,
TInputImage::ImageDimension);
typedef ShapeLabelObject<InputImagePixelType, itkGetStaticConstMacro(ImageDimension)> LabelObjectType;
typedef LabelMap< LabelObjectType > LabelMapType;
typedef LabelImageToLabelMapFilter< InputImageType, LabelMapType > LabelizerType;
typedef Image< typename OutputImageType::PixelType, itkGetStaticConstMacro(OutputImageDimension)> ShapeLabelFilterOutput;
typedef ShapeLabelMapFilter< LabelMapType, ShapeLabelFilterOutput > LabelObjectValuatorType;
typedef typename LabelObjectType::AttributeType AttributeType;
typedef ShapeKeepNObjectsLabelMapFilter< LabelMapType > KeepNObjectsType;
typedef LabelMapToLabelImageFilter< LabelMapType, OutputImageType > BinarizerType;
/** Standard New method. */
itkNewMacro(Self);
/** Runtime information support. */
itkTypeMacro(LabelShapeKeepNObjectsImageFilter,
ImageToImageFilter);
#ifdef ITK_USE_CONCEPT_CHECKING
/** Begin concept checking */
itkConceptMacro(InputEqualityComparableCheck,
(Concept::EqualityComparable<InputImagePixelType>));
itkConceptMacro(IntConvertibleToInputCheck,
(Concept::Convertible<int, InputImagePixelType>));
itkConceptMacro(InputOStreamWritableCheck,
(Concept::OStreamWritable<InputImagePixelType>));
/** End concept checking */
#endif
/**
* Set/Get the value used as "background" in the output image.
* Defaults to NumericTraits<PixelType>::NonpositiveMin().
*/
itkSetMacro(BackgroundValue, OutputImagePixelType);
itkGetConstMacro(BackgroundValue, OutputImagePixelType);
/**
* Set/Get the number of objects to keep
*/
itkGetConstMacro(NumberOfObjects, unsigned long);
itkSetMacro(NumberOfObjects, unsigned long);
/**
* Set/Get the ordering of the objects. By default, the ones with the
* highest value are kept. Turming ReverseOrdering to true make this filter
* keep the objects with the smallest values
*/
itkGetConstMacro( ReverseOrdering, bool );
itkSetMacro( ReverseOrdering, bool );
itkBooleanMacro( ReverseOrdering );
/**
* Set/Get the attribute to use to select the object to keep. The default
* is "Size".
*/
itkGetConstMacro( Attribute, AttributeType );
itkSetMacro( Attribute, AttributeType );
void SetAttribute( const std::string & s )
{
this->SetAttribute( LabelObjectType::GetAttributeFromName( s ) );
}
protected:
LabelShapeKeepNObjectsImageFilter();
~LabelShapeKeepNObjectsImageFilter() {};
void PrintSelf(std::ostream& os, Indent indent) const;
/** LabelShapeKeepNObjectsImageFilter needs the entire input be
* available. Thus, it needs to provide an implementation of
* GenerateInputRequestedRegion(). */
void GenerateInputRequestedRegion();
/** LabelShapeKeepNObjectsImageFilter will produce the entire output. */
void EnlargeOutputRequestedRegion(DataObject *itkNotUsed(output));
/** Single-threaded version of GenerateData. This filter delegates
* to GrayscaleGeodesicErodeImageFilter. */
void GenerateData();
private:
LabelShapeKeepNObjectsImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
OutputImagePixelType m_BackgroundValue;
unsigned long m_NumberOfObjects;
bool m_ReverseOrdering;
AttributeType m_Attribute;
}; // end of class
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkLabelShapeKeepNObjectsImageFilter.txx"
#endif
#endif
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