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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkLabelMapToBinaryImageFilter.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 __itkLabelMapToBinaryImageFilter_h
#define __itkLabelMapToBinaryImageFilter_h
#include "itkLabelMapFilter.h"
#include "itkBarrier.h"
namespace itk {
/** \class LabelMapToBinaryImageFilter
* \brief Convert a LabelMap to a binary image.
*
* LabelMapToBinaryImageFilter to a binary image. All the objects in the image
* are used as foreground. The background values of the original binary image
* can be restored by passing this image to the filter with the
* SetBackgroundImage() method.
*
* 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 LabelMapToLabelImageFilter, LabelMapMaskImageFilter
* \ingroup ImageEnhancement MathematicalMorphologyImageFilters
*/
template<class TInputImage, class TOutputImage>
class ITK_EXPORT LabelMapToBinaryImageFilter :
public LabelMapFilter<TInputImage, TOutputImage>
{
public:
/** Standard class typedefs. */
typedef LabelMapToBinaryImageFilter Self;
typedef LabelMapFilter<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::LabelObjectType LabelObjectType;
typedef typename OutputImageType::Pointer OutputImagePointer;
typedef typename OutputImageType::ConstPointer OutputImageConstPointer;
typedef typename OutputImageType::RegionType OutputImageRegionType;
typedef typename OutputImageType::PixelType OutputImagePixelType;
typedef typename OutputImageType::IndexType IndexType;
/** ImageDimension constants */
itkStaticConstMacro(InputImageDimension, unsigned int, TInputImage::ImageDimension);
itkStaticConstMacro(OutputImageDimension, unsigned int, TOutputImage::ImageDimension);
/** Standard New method. */
itkNewMacro(Self);
/** Runtime information support. */
itkTypeMacro(LabelMapToBinaryImageFilter, ImageToImageFilter);
/**
* 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 value used as "foreground" in the output image.
* Defaults to NumericTraits<PixelType>::max().
*/
itkSetMacro(ForegroundValue, OutputImagePixelType);
itkGetConstMacro(ForegroundValue, OutputImagePixelType);
/** Set/Get the background image top be used to restore the background values */
void SetBackgroundImage( const OutputImageType *input)
{
// Process object is not const-correct so the const casting is required.
this->SetNthInput( 1, const_cast<OutputImageType *>(input) );
}
OutputImageType * GetBackgroundImage()
{
return static_cast<OutputImageType*>(const_cast<DataObject *>(this->ProcessObject::GetInput(1)));
}
/** Set the input image */
void SetInput1( const InputImageType * input )
{
this->SetInput( input );
}
/** Set the marker image */
void SetInput2( const OutputImageType * input )
{
this->SetBackgroundImage( input );
}
protected:
LabelMapToBinaryImageFilter();
~LabelMapToBinaryImageFilter() {};
/** LabelMapToBinaryImageFilter needs the entire input be
* available. Thus, it needs to provide an implementation of
* GenerateInputRequestedRegion(). */
void GenerateInputRequestedRegion();
/** LabelMapToBinaryImageFilter will produce the entire output. */
void EnlargeOutputRequestedRegion(DataObject *itkNotUsed(output));
virtual void BeforeThreadedGenerateData();
virtual void ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread, int threadId );
virtual void ThreadedProcessLabelObject( LabelObjectType * labelObject );
void PrintSelf(std::ostream& os, Indent indent) const;
private:
LabelMapToBinaryImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
OutputImagePixelType m_BackgroundValue;
OutputImagePixelType m_ForegroundValue;
typename Barrier::Pointer m_Barrier;
}; // end of class
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkLabelMapToBinaryImageFilter.txx"
#endif
#endif
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