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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkVectorCastImageFilter.h,v $
Language: C++
Date: $Date: 2007-09-27 11:36:41 $
Version: $Revision: 1.14 $
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 __itkVectorCastImageFilter_h
#define __itkVectorCastImageFilter_h
#include "itkUnaryFunctorImageFilter.h"
namespace itk
{
/** \class VectorCastImageFilter
*
* \brief Casts input vector pixels to output vector pixel type.
*
* This filter is templated over the input image type and
* output image type.
*
* The filter expect both images to have the same number of dimensions,
* and that both the input and output have itk::Vector pixel types
* of the same VectorDimension.
*
* \sa Vector
*
* \ingroup IntensityImageFilters Multithreaded
*/
namespace Functor {
template< class TInput, class TOutput>
class VectorCast
{
public:
VectorCast() {}
~VectorCast() {}
bool operator!=( const VectorCast & ) const
{
return false;
}
bool operator==( const VectorCast & other ) const
{
return !(*this != other);
}
inline TOutput operator()( const TInput & A ) const
{
typedef typename TOutput::ValueType OutputValueType;
TOutput value;
for( unsigned int k = 0; k < TOutput::Dimension; k++ )
{ value[k] = static_cast<OutputValueType>( A[k] ); }
return value;
}
};
}
template <class TInputImage, class TOutputImage>
class ITK_EXPORT VectorCastImageFilter :
public
UnaryFunctorImageFilter<TInputImage,TOutputImage,
Functor::VectorCast< typename TInputImage::PixelType,
typename TOutputImage::PixelType> >
{
public:
/** Standard class typedefs. */
typedef VectorCastImageFilter Self;
typedef UnaryFunctorImageFilter<TInputImage,TOutputImage,
Functor::VectorCast< typename TInputImage::PixelType,
typename TOutputImage::PixelType> > Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Runtime information support. */
itkTypeMacro(VectorCastImageFilter,
UnaryFunctorImageFilter);
#ifdef ITK_USE_CONCEPT_CHECKING
/** Begin concept checking */
itkConceptMacro(InputHasNumericTraitsCheck,
(Concept::HasNumericTraits<typename TInputImage::PixelType::ValueType>));
itkConceptMacro(OutputHasNumericTraitsCheck,
(Concept::HasNumericTraits<typename TOutputImage::PixelType::ValueType>));
itkConceptMacro(InputConvertibleToOutputCheck,
(Concept::Convertible<typename TInputImage::PixelType::ValueType,
typename TOutputImage::PixelType::ValueType>));
/** End concept checking */
#endif
protected:
VectorCastImageFilter() {}
virtual ~VectorCastImageFilter() {}
private:
VectorCastImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
};
} // end namespace itk
#endif
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