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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkBinaryThresholdProjectionImageFilter.h,v $
Language: C++
Date: $Date: 2008-02-08 04:52:21 $
Version: $Revision: 1.1 $
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 __itkBinaryThresholdProjectionImageFilter_h
#define __itkBinaryThresholdProjectionImageFilter_h
#include "itkProjectionImageFilter.h"
#include "itkNumericTraits.h"
#include "itkConceptChecking.h"
namespace itk {
/** \class BinaryThresholdProjectionImageFilter
* \brief BinaryThreshold projection
*
*
* This class was contributed to the Insight Journal by Gaetan Lehmann.
* the original paper can be found at
* http://insight-journal.org/midas/handle.php?handle=1926/164
*
*
* \author Gatan Lehmann. Biologie du Dveloppement et de la Reproduction,
* INRA de Jouy-en-Josas, France.
* http://hdl.handle.net/1926/164
*
* \sa ProjectionImageFilter
* \sa MedianProjectionImageFilter
* \sa MeanProjectionImageFilter
* \sa MeanProjectionImageFilter
* \sa MaximumProjectionImageFilter
* \sa MinimumProjectionImageFilter
* \sa StandardDeviationProjectionImageFilter
* \sa SumProjectionImageFilter
*/
namespace Function {
template <class TInputPixel, class TOutputPixel>
class BinaryThresholdAccumulator
{
public:
BinaryThresholdAccumulator( unsigned long ) {}
~BinaryThresholdAccumulator(){}
inline void Initialize()
{
m_IsForeground = false;
}
inline void operator()( const TInputPixel &input )
{
if( input >= m_ThresholdValue )
{
m_IsForeground = true;
}
}
inline TOutputPixel GetValue()
{
if( m_IsForeground )
{
return (TOutputPixel)m_ForegroundValue;
}
else
{
return m_BackgroundValue;
}
}
bool m_IsForeground;
TInputPixel m_ThresholdValue;
TInputPixel m_ForegroundValue;
TOutputPixel m_BackgroundValue;
};
} // end namespace Function
template <class TInputImage, class TOutputImage>
class ITK_EXPORT BinaryThresholdProjectionImageFilter :
public ProjectionImageFilter<TInputImage, TOutputImage,
Function::BinaryThresholdAccumulator<
typename TInputImage::PixelType,
typename TOutputImage::PixelType > >
{
public:
typedef BinaryThresholdProjectionImageFilter Self;
typedef ProjectionImageFilter<TInputImage, TOutputImage,
Function::BinaryThresholdAccumulator<
typename TInputImage::PixelType,
typename TOutputImage::PixelType > > Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Runtime information support. */
itkTypeMacro(BinaryThresholdProjectionImageFilter, ProjectionImageFilter);
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Convenient typedefs for simplifying declarations. */
typedef TInputImage InputImageType;
typedef TOutputImage OutputImageType;
/** Image typedef support. */
typedef typename InputImageType::PixelType InputPixelType;
typedef typename OutputImageType::PixelType OutputPixelType;
typedef typename Superclass::AccumulatorType AccumulatorType;
/** Set/Get the value in the image to consider as "foreground". Defaults to
* maximum value of PixelType .*/
itkSetMacro(ForegroundValue, InputPixelType);
itkGetConstMacro(ForegroundValue, InputPixelType);
/** Set/Get the value used as "background". Defaults to
* NumericTraits<PixelType>::NonpositiveMin(). */
itkSetMacro(BackgroundValue, OutputPixelType);
itkGetConstMacro(BackgroundValue, OutputPixelType);
/** Set/Get the value in the image to consider as "threshold". Defaults to
* NumericTraits<InputPixelType>::max() */
itkSetMacro(ThresholdValue, InputPixelType);
itkGetConstMacro(ThresholdValue, InputPixelType);
#ifdef ITK_USE_CONCEPT_CHECKING
/** Begin concept checking */
itkConceptMacro(InputPixelTypeGreaterThanComparable,
(Concept::GreaterThanComparable<InputPixelType>));
itkConceptMacro(InputHasNumericTraitsCheck,
(Concept::HasNumericTraits<InputPixelType>));
/** End concept checking */
#endif
protected:
BinaryThresholdProjectionImageFilter()
{
m_ForegroundValue = NumericTraits<InputPixelType>::max();
m_BackgroundValue = NumericTraits<OutputPixelType>::NonpositiveMin();
m_ThresholdValue = NumericTraits<InputPixelType>::Zero;
}
virtual ~BinaryThresholdProjectionImageFilter() {}
void PrintSelf(std::ostream& os, Indent indent) const
{
Superclass::PrintSelf(os,indent);
typedef typename NumericTraits<InputPixelType>::PrintType
InputPixelPrintType;
os << indent << "ForegroundValue: "
<< static_cast< InputPixelPrintType > (m_ForegroundValue)
<< std::endl;
typedef typename NumericTraits<OutputPixelType>::PrintType
OutputPixelPrintType;
os << indent << "BackgroundValue: "
<< static_cast< OutputPixelPrintType > (m_BackgroundValue)
<< std::endl;
os << indent << "ThresholdValue: "
<< static_cast< InputPixelPrintType > (m_ThresholdValue)
<< std::endl;
}
virtual AccumulatorType NewAccumulator( unsigned long size ) const
{
AccumulatorType accumulator( size );
accumulator.m_ForegroundValue = m_ForegroundValue;
accumulator.m_BackgroundValue = m_BackgroundValue;
accumulator.m_ThresholdValue = m_ThresholdValue;
return accumulator;
}
/** Pixel value to dilate */
InputPixelType m_ForegroundValue;
/** Pixel value for background */
OutputPixelType m_BackgroundValue;
/** Pixel value for Threshold */
OutputPixelType m_ThresholdValue;
private:
BinaryThresholdProjectionImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
}; // end BinaryThresholdProjectionImageFilter
} //end namespace itk
#endif
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