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/*
* Copyright (C) 2005-2020 Centre National d'Etudes Spatiales (CNES)
*
* This file is part of Orfeo Toolbox
*
* https://www.orfeo-toolbox.org/
*
* 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
*
* 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 otbRealAndImaginaryImageToComplexImageFilter_h
#define otbRealAndImaginaryImageToComplexImageFilter_h
#include "itkBinaryFunctorImageFilter.h"
#include "vnl/vnl_math.h"
namespace otb
{
/** \class RealAndImaginaryImageToComplexImageFilter
* \brief Computes pixel-wise the complex image of a real and imaginary image.
*
* \sa RealAndImaginaryImageToComplexImageFilter
* \ingroup Multithreaded
*
* \ingroup OTBImageManipulation
*/
namespace Function
{
template <class TInputImageRealPart, class TInputImageImaginaryPart, class TOutput>
class RealAndImaginaryToComplex
{
public:
typedef typename TOutput::value_type OutputValueType;
RealAndImaginaryToComplex()
{
}
~RealAndImaginaryToComplex()
{
}
bool operator!=(const RealAndImaginaryToComplex&) const
{
return false;
}
bool operator==(const RealAndImaginaryToComplex& other) const
{
return !(*this != other);
}
inline TOutput operator()(const TInputImageRealPart& real, const TInputImageImaginaryPart& imaginary) const
{
return TOutput(static_cast<OutputValueType>(real), static_cast<OutputValueType>(imaginary));
}
};
}
template <class TInputImageRealPart, class TInputImageImaginaryPart, class TOutputImage>
class ITK_EXPORT RealAndImaginaryImageToComplexImageFilter
: public itk::BinaryFunctorImageFilter<TInputImageRealPart, TInputImageImaginaryPart, TOutputImage,
Function::RealAndImaginaryToComplex<typename TInputImageRealPart::PixelType,
typename TInputImageImaginaryPart::PixelType, typename TOutputImage::PixelType>>
{
public:
/** Standard class typedefs. */
typedef RealAndImaginaryImageToComplexImageFilter Self;
typedef itk::BinaryFunctorImageFilter<TInputImageRealPart, TInputImageImaginaryPart, TOutputImage,
Function::RealAndImaginaryToComplex<typename TInputImageRealPart::PixelType,
typename TInputImageImaginaryPart::PixelType, typename TOutputImage::PixelType>>
Superclass;
typedef itk::SmartPointer<Self> Pointer;
typedef itk::SmartPointer<const Self> ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Runtime information support. */
itkTypeMacro(RealAndImaginaryImageToComplexImageFilter, BinaryFunctorImageFilter);
typedef typename TInputImageRealPart::PixelType InputRealPartPixelType;
typedef typename TInputImageImaginaryPart::PixelType InputImaginaryPartPixelType;
typedef typename TOutputImage::PixelType OutputPixelType;
typedef typename itk::NumericTraits<OutputPixelType>::ValueType OutputPixelValueType;
//#ifdef ITK_USE_CONCEPT_CHECKING
/** Begin concept checking */
// itkConceptMacro(InputConvertibleToOutputCheck,
// (Concept::Convertible<InputRealPartPixelType, OutputPixelValueType>));
// itkConceptMacro(InputConvertibleToOutputCheck,
// (Concept::Convertible<InputImaginaryPartPixelType, OutputPixelValueType>));
/** End concept checking */
//#endif
void SetInputRealPart(const TInputImageRealPart* imageRealPart)
{
this->SetInput1(imageRealPart);
}
void SetInputImaginaryPart(const TInputImageImaginaryPart* imageImaginaryPart)
{
this->SetInput2(imageImaginaryPart);
}
protected:
RealAndImaginaryImageToComplexImageFilter()
{
}
~RealAndImaginaryImageToComplexImageFilter() override
{
}
private:
RealAndImaginaryImageToComplexImageFilter(const Self&) = delete;
void operator=(const Self&) = delete;
};
} // end namespace otb
#endif
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