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itkComplexConjugateImageFilter.h
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itkComplexConjugateImageFilter.h
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/*=========================================================================
*
* Copyright NumFOCUS
*
* 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
*
* https://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 itkComplexConjugateImageFilter_h
#define itkComplexConjugateImageFilter_h
#include "itkUnaryFunctorImageFilter.h"
#include <complex>
namespace itk
{
/** \class ComplexConjugateImageFilter
* \brief Computes pixel-wise the complex conjugate of a complex image.
*
* \ingroup IntensityImageFilters Multithreaded
*
* \ingroup Ultrasound
*/
namespace Function
{
template <class TInput, class TOutput>
class ComplexConjugate
{
public:
ComplexConjugate() = default;
~ComplexConjugate() = default;
bool
operator!=(const ComplexConjugate &) const
{
return false;
}
bool
operator==(const ComplexConjugate & other) const
{
return !(*this != other);
}
inline TOutput
operator()(const TInput & A) const
{
return (TOutput)(std::conj(A));
}
};
} // end namespace Function
template <class TInputImage, class TOutputImage>
class ITK_TEMPLATE_EXPORT ComplexConjugateImageFilter
: public UnaryFunctorImageFilter<
TInputImage,
TOutputImage,
Function::ComplexConjugate<typename TInputImage::PixelType, typename TOutputImage::PixelType>>
{
public:
/** Standard class type alias. */
using Self = ComplexConjugateImageFilter;
using Superclass = UnaryFunctorImageFilter<
TInputImage,
TOutputImage,
Function::ComplexConjugate<typename TInputImage::PixelType, typename TOutputImage::PixelType>>;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Runtime information support. */
itkTypeMacro(ComplexConjugateImageFilter, UnaryFunctorImageFilter);
using InputPixelType = typename TInputImage::PixelType;
using OutputPixelType = typename TOutputImage::PixelType;
using InputPixelValueType = typename NumericTraits<InputPixelType>::ValueType;
#ifdef ITK_USE_CONCEPT_CHECKING
/** Begin concept checking */
itkConceptMacro(InputConvertibleToOutputCheck, (Concept::Convertible<InputPixelValueType, OutputPixelType>));
/** End concept checking */
#endif
protected:
ComplexConjugateImageFilter() = default;
~ComplexConjugateImageFilter() override = default;
private:
ComplexConjugateImageFilter(const Self &); // purposely not implemented
void
operator=(const Self &); // purposely not implemented
};
} // end namespace itk
#endif