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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkOrImageFilter_h
#define itkOrImageFilter_h
#include "itkBinaryFunctorImageFilter.h"
#include "itkNumericTraits.h"
namespace itk
{
namespace Functor
{
/**
* \class OR
* \brief bitwise OR functor
* \ingroup ITKImageIntensity
*/
template< typename TInput1, typename TInput2 = TInput1, typename TOutput = TInput1 >
class OR
{
public:
OR() {}
~OR() {}
bool operator!=(const OR &) const
{
return false;
}
bool operator==(const OR & other) const
{
return !( *this != other );
}
inline TOutput operator()(const TInput1 & A, const TInput2 & B) const
{
return static_cast< TOutput >( A | B );
}
};
}
/** \class OrImageFilter
* \brief Implements the OR bitwise operator pixel-wise between two images.
*
* This class is templated over the types of the two
* input images and the type of the output image.
* Numeric conversions (castings) are done by the C++ defaults.
*
* Since the bitwise OR 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
*
* \code
* output_pixel = static_cast<OutputPixelType>( input1_pixel | input2_pixel )
* \endcode
*
* Where "|" is the boolean OR operator in C++.
*
* \ingroup IntensityImageFilters
* \ingroup MultiThreaded
* \ingroup ITKImageIntensity
*
* \wiki
* \wikiexample{ImageProcessing/OrImageFilter,Binary OR two images}
* \endwiki
*/
template< typename TInputImage1, typename TInputImage2 = TInputImage1, typename TOutputImage = TInputImage1 >
class OrImageFilter:
public
BinaryFunctorImageFilter< TInputImage1, TInputImage2, TOutputImage,
Functor::OR<
typename TInputImage1::PixelType,
typename TInputImage2::PixelType,
typename TOutputImage::PixelType > >
{
public:
/** Standard class typedefs. */
typedef OrImageFilter Self;
typedef BinaryFunctorImageFilter<
TInputImage1, TInputImage2, TOutputImage,
Functor::OR< typename TInputImage1::PixelType,
typename TInputImage2::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(OrImageFilter,
BinaryFunctorImageFilter);
#ifdef ITK_USE_CONCEPT_CHECKING
// Begin concept checking
itkConceptMacro( Input1Input2OutputBitwiseOperatorsCheck,
( Concept::BitwiseOperators< typename TInputImage1::PixelType,
typename TInputImage2::PixelType,
typename TOutputImage::PixelType > ) );
// End concept checking
#endif
protected:
OrImageFilter() {}
virtual ~OrImageFilter() {}
private:
ITK_DISALLOW_COPY_AND_ASSIGN(OrImageFilter);
};
} // end namespace itk
#endif
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