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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkShapeOpeningLabelMapFilter.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 __itkShapeOpeningLabelMapFilter_h
#define __itkShapeOpeningLabelMapFilter_h
#include "itkInPlaceLabelMapFilter.h"
#include "itkLabelObjectAccessors.h"
#include "itkShapeLabelObjectAccessors.h"
#include "itkProgressReporter.h"
namespace itk {
/** \class ShapeOpeningLabelMapFilter
* \brief Remove objects according to the value of their shape attribute.
*
* ShapeOpeningLabelMapFilter removes objects in a label collection image
* with an attribute value smaller or greater than a threshold called Lambda.
* The attributes are those of the ShapeLabelObject.
*
* This implementation was taken from the Insight Journal paper:
* http://hdl.handle.net/1926/584 or
* http://www.insight-journal.org/browse/publication/176
*
* \author Gaetan Lehmann. Biologie du Developpement et de la Reproduction, INRA de Jouy-en-Josas, France.
*
* \sa ShapeLabelObject, BinaryShapeOpeningImageFilter, LabelStatisticsOpeningImageFilter
* \ingroup ImageEnhancement MathematicalMorphologyImageFilters
*/
template<class TImage>
class ITK_EXPORT ShapeOpeningLabelMapFilter :
public InPlaceLabelMapFilter<TImage>
{
public:
/** Standard class typedefs. */
typedef ShapeOpeningLabelMapFilter Self;
typedef InPlaceLabelMapFilter<TImage> Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Some convenient typedefs. */
typedef TImage ImageType;
typedef typename ImageType::Pointer ImagePointer;
typedef typename ImageType::ConstPointer ImageConstPointer;
typedef typename ImageType::PixelType PixelType;
typedef typename ImageType::IndexType IndexType;
typedef typename ImageType::LabelObjectType LabelObjectType;
typedef typename LabelObjectType::AttributeType AttributeType;
/** ImageDimension constants */
itkStaticConstMacro(ImageDimension, unsigned int, TImage::ImageDimension);
/** Standard New method. */
itkNewMacro(Self);
/** Runtime information support. */
itkTypeMacro(ShapeOpeningLabelMapFilter, InPlaceLabelMapFilter);
#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 threshold used to keep or remove the objects.
*/
itkGetConstMacro(Lambda, double);
itkSetMacro(Lambda, double);
/**
* Set/Get the ordering of the objects. By default, objects with
* an attribute value smaller than Lamba are removed. Turning ReverseOrdering
* to true makes this filter remove objects with an attribute value greater
* than Lambda instead.
*/
itkGetConstMacro( ReverseOrdering, bool );
itkSetMacro( ReverseOrdering, bool );
itkBooleanMacro( ReverseOrdering );
/**
* Set/Get the attribute to use to select the object to remove.
* The default is "Size".
*/
itkGetConstMacro( Attribute, AttributeType );
itkSetMacro( Attribute, AttributeType );
void SetAttribute( const std::string & s )
{
this->SetAttribute( LabelObjectType::GetAttributeFromName( s ) );
}
protected:
ShapeOpeningLabelMapFilter();
~ShapeOpeningLabelMapFilter() {};
void GenerateData();
template <class TAttributeAccessor>
void TemplatedGenerateData( const TAttributeAccessor & accessor )
{
// Allocate the output
this->AllocateOutputs();
ImageType * output = this->GetOutput();
ImageType * output2 = this->GetOutput( 1 );
assert( this->GetNumberOfOutputs() == 2 );
assert( output2 != NULL );
// set the background value for the second output - this is not done in the superclasses
output2->SetBackgroundValue( output->GetBackgroundValue() );
const typename ImageType::LabelObjectContainerType & labelObjectContainer = output->GetLabelObjectContainer();
ProgressReporter progress( this, 0, labelObjectContainer.size() );
typename ImageType::LabelObjectContainerType::const_iterator it = labelObjectContainer.begin();
while( it != labelObjectContainer.end() )
{
typename LabelObjectType::LabelType label = it->first;
LabelObjectType * labelObject = it->second;
if( ( !m_ReverseOrdering && accessor( labelObject ) < m_Lambda )
|| ( m_ReverseOrdering && accessor( labelObject ) > m_Lambda ) )
{
// must increment the iterator before removing the object to avoid invalidating the iterator
it++;
output2->AddLabelObject( labelObject );
output->RemoveLabel( label );
}
else
{
it++;
}
progress.CompletedPixel();
}
}
void PrintSelf(std::ostream& os, Indent indent) const;
double m_Lambda;
bool m_ReverseOrdering;
AttributeType m_Attribute;
private:
ShapeOpeningLabelMapFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
}; // end of class
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkShapeOpeningLabelMapFilter.txx"
#endif
#endif
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