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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkNotImageFilter.h,v $
Language: C++
Date: $Date: 2007-09-27 11:36:41 $
Version: $Revision: 1.6 $
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 __itkNotImageFilter_h
#define __itkNotImageFilter_h
#include "itkUnaryFunctorImageFilter.h"
#include "itkNumericTraits.h"
namespace itk
{
/** \class NotImageFilter
* \brief Implements the NOT logical operator pixel-wise on an image.
*
* This class is parametrized over the types of an
* input image and the type of the output image.
* Numeric conversions (castings) are done by the C++ defaults.
*
* Since the logical NOT operation is only defined in C++ for integer
* types, the images passed to this filter must comply with the requirement
* of using integer pixel type.
*
* The total operation over one pixel will be
*
* output_pixel = static_cast<OutputPixelType>( !input_pixel )
*
* Where "!" is the unary NOT operator in C++.
*
* \ingroup IntensityImageFilters Multithreaded
*/
namespace Functor {
template< class TInput, class TOutput=TInput >
class NOT
{
public:
NOT() {};
~NOT() {};
bool operator!=( const NOT & ) const
{
return false;
}
bool operator==( const NOT & other ) const
{
return !(*this != other);
}
inline TOutput operator()( const TInput & A )
{
return static_cast<TOutput>( !A );
}
};
}
template <class TInputImage, class TOutputImage>
class ITK_EXPORT NotImageFilter :
public
UnaryFunctorImageFilter<TInputImage,TOutputImage,
Functor::NOT<
typename TInputImage::PixelType,
typename TOutputImage::PixelType> >
{
public:
/** Standard class typedefs. */
typedef NotImageFilter Self;
typedef UnaryFunctorImageFilter<TInputImage,TOutputImage,
Functor::NOT<
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(NotImageFilter,
UnaryFunctorImageFilter);
#ifdef ITK_USE_CONCEPT_CHECKING
/** Begin concept checking */
itkConceptMacro(InputConvertibleToOutputCheck,
(Concept::Convertible<typename TInputImage::PixelType,
typename TOutputImage::PixelType>));
itkConceptMacro(InputNotOperatorCheck,
(Concept::NotOperator<typename TInputImage::PixelType>));
/** End concept checking */
#endif
protected:
NotImageFilter() {}
virtual ~NotImageFilter() {}
private:
NotImageFilter(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
};
} // end namespace itk
#endif
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