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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkMinimumProjectionImageFilter.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 __itkMinimumProjectionImageFilter_h
#define __itkMinimumProjectionImageFilter_h
#include "itkProjectionImageFilter.h"
#include "itkNumericTraits.h"
#include "itkConceptChecking.h"
namespace itk {
/** \class MinimumProjectionImageFilter
* \brief Minimum 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.
*
* \sa ProjectionImageFilter
* \sa StandardDeviationProjectionImageFilter
* \sa SumProjectionImageFilter
* \sa BinaryProjectionImageFilter
* \sa MaximumProjectionImageFilter
* \sa MeanProjectionImageFilter
*/
namespace Function {
template <class TInputPixel>
class MinimumAccumulator
{
public:
MinimumAccumulator( unsigned long ) {}
~MinimumAccumulator(){}
inline void Initialize()
{
m_Minimum = NumericTraits< TInputPixel >::max();
}
inline void operator()( const TInputPixel &input )
{
m_Minimum = vnl_math_min( m_Minimum, input );
}
inline TInputPixel GetValue()
{
return m_Minimum;
}
TInputPixel m_Minimum;
};
} // end namespace Function
template <class TInputImage, class TOutputImage>
class ITK_EXPORT MinimumProjectionImageFilter : public
ProjectionImageFilter<TInputImage, TOutputImage,
Function::MinimumAccumulator< typename TInputImage::PixelType > >
{
public:
typedef MinimumProjectionImageFilter Self;
typedef ProjectionImageFilter<TInputImage, TOutputImage,
Function::MinimumAccumulator<
typename TInputImage::PixelType > > Superclass;
typedef TInputImage InputImageType;
typedef typename InputImageType::PixelType InputPixelType;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Runtime information support. */
itkTypeMacro(MinimumProjectionImageFilter, ProjectionImageFilter);
/** Method for creation through the object factory. */
itkNewMacro(Self);
#ifdef ITK_USE_CONCEPT_CHECKING
/** Begin concept checking */
itkConceptMacro(InputPixelTypeGreaterThanComparable,
(Concept::LessThanComparable<InputPixelType>));
itkConceptMacro(InputHasNumericTraitsCheck,
(Concept::HasNumericTraits<InputPixelType>));
/** End concept checking */
#endif
protected:
MinimumProjectionImageFilter() {}
virtual ~MinimumProjectionImageFilter() {}
private:
MinimumProjectionImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
}; // end MinimumProjectionImageFilter
} //end namespace itk
#endif
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