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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 itkNotImageFilter_h
#define itkNotImageFilter_h
#include "itkUnaryFunctorImageFilter.h"
#include "itkLogicOpsFunctors.h"
#include "itkNumericTraits.h"
namespace itk
{
/** \class NotImageFilter
* \brief Implements the NOT logical operator pixel-wise on an image.
*
* This class is templated over the type 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 operates only on boolean types,
* the input type must be implicitly convertible to bool, which 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
* if( !A )
* {
* return this->m_ForegroundValue;
* }
* return this->m_BackgroundValue;
* \endcode
*
* Where "!" is the unary Logical NOT operator in C++.
*
* \ingroup IntensityImageFilters
* \ingroup MultiThreaded
* \ingroup ITKImageIntensity
*/
template< typename TInputImage, typename TOutputImage >
class 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);
/** Set/Get the value used to mark the false pixels of the result of
* the operator. Defaults to 0 */
void SetBackgroundValue(const typename TOutputImage::PixelType & backgroundValue)
{
if ( Math::NotExactlyEquals(this->GetBackgroundValue(), backgroundValue) )
{
this->Modified();
this->GetFunctor().SetBackgroundValue(backgroundValue);
}
}
typename TOutputImage::PixelType GetBackgroundValue() const
{
return this->GetFunctor().GetBackgroundValue();
}
/** Set/Get the value used to mark the false pixels of the result of
* the operator. Defaults to 1 */
void SetForegroundValue(const typename TOutputImage::PixelType & foregroundValue)
{
std::cout << "this->GetForegroundValue(): " << this->GetForegroundValue()
<< " foregroundValue: " << foregroundValue << std::endl;
if ( Math::NotExactlyEquals(this->GetForegroundValue(), foregroundValue) )
{
this->Modified();
this->GetFunctor().SetForegroundValue(foregroundValue);
}
}
typename TOutputImage::PixelType GetForegroundValue() const
{
return this->GetFunctor().GetForegroundValue();
}
#ifdef ITK_USE_CONCEPT_CHECKING
// Begin concept checking
itkConceptMacro( InputConvertibleToOutputCheck,
( Concept::Convertible< typename TInputImage::PixelType,
bool > ) );
itkConceptMacro( OutputConvertibleToOutputCheck,
( Concept::Convertible< bool,
typename TOutputImage::PixelType > ) );
itkConceptMacro( InputNotOperatorCheck,
( Concept::NotOperator< typename TInputImage::PixelType > ) );
// End concept checking
#endif
protected:
NotImageFilter()
{
this->GetFunctor().SetForegroundValue(true);
this->GetFunctor().SetBackgroundValue(false);
}
virtual ~NotImageFilter() ITK_OVERRIDE {}
private:
ITK_DISALLOW_COPY_AND_ASSIGN(NotImageFilter);
};
} // end namespace itk
#endif
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