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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkLabelImageToLabelMapFilter.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 __itkLabelImageToLabelMapFilter_h
#define __itkLabelImageToLabelMapFilter_h
#include "itkImageToImageFilter.h"
#include "itkLabelMap.h"
#include "itkLabelObject.h"
namespace itk {
/** \class LabelImageToLabelMapFilter
* \brief convert a labeled image to a label collection image
*
* LabelImageToLabelMapFilter converts a label image to a label collection image.
* The labels are the same in the input and the output image.
*
* \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 BinaryImageToLabelMapFilter, LabelMapToLabelImageFilter
* \ingroup ImageEnhancement MathematicalMorphologyImageFilters
*/
template<class TInputImage, class TOutputImage=LabelMap< LabelObject< typename TInputImage::PixelType, ::itk::GetImageDimension<TInputImage>::ImageDimension > > >
class ITK_EXPORT LabelImageToLabelMapFilter :
public ImageToImageFilter<TInputImage, TOutputImage>
{
public:
/** Standard class typedefs. */
typedef LabelImageToLabelMapFilter 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 InputImageType::IndexType IndexType;
typedef typename OutputImageType::Pointer OutputImagePointer;
typedef typename OutputImageType::ConstPointer OutputImageConstPointer;
typedef typename OutputImageType::RegionType OutputImageRegionType;
typedef typename OutputImageType::PixelType OutputImagePixelType;
typedef typename OutputImageType::LabelObjectType LabelObjectType;
/** ImageDimension constants */
itkStaticConstMacro(InputImageDimension, unsigned int,
TInputImage::ImageDimension);
itkStaticConstMacro(OutputImageDimension, unsigned int,
TOutputImage::ImageDimension);
/** Standard New method. */
itkNewMacro(Self);
/** Runtime information support. */
itkTypeMacro(LabelImageToLabelMapFilter,
ImageToImageFilter);
/**
* Set/Get the value used as "background" in the output image.
* Defaults to NumericTraits<PixelType>::NonpositiveMin().
*/
itkSetMacro(BackgroundValue, OutputImagePixelType);
itkGetConstMacro(BackgroundValue, OutputImagePixelType);
protected:
LabelImageToLabelMapFilter();
~LabelImageToLabelMapFilter() {};
void PrintSelf(std::ostream& os, Indent indent) const;
/** LabelImageToLabelMapFilter needs the entire input be
* available. Thus, it needs to provide an implementation of
* GenerateInputRequestedRegion(). */
void GenerateInputRequestedRegion();
/** LabelImageToLabelMapFilter will produce the entire output. */
void EnlargeOutputRequestedRegion(DataObject *itkNotUsed(output));
virtual void BeforeThreadedGenerateData();
virtual void ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread, int threadId );
virtual void AfterThreadedGenerateData();
private:
LabelImageToLabelMapFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
OutputImagePixelType m_BackgroundValue;
typename std::vector< OutputImagePointer > m_TemporaryImages;
}; // end of class
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkLabelImageToLabelMapFilter.txx"
#endif
#endif
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