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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 itkFFTWInverseFFTImageFilter_h
#define itkFFTWInverseFFTImageFilter_h
#include "itkInverseFFTImageFilter.h"
#include "itkFFTWCommon.h"
namespace itk
{
/** \class FFTWInverseFFTImageFilter
*
* \brief FFTW-based inverse Fast Fourier Transform
*
* This filter computes the inverse Fourier transform of an image. The
* implementation is based on the FFTW library.
*
* This filter is multithreaded and supports input images of any size.
*
* This implementation was taken from the Insight Journal paper:
* https://hdl.handle.net/10380/3154
* or http://insight-journal.com/browse/publication/717
*
* \author Gaetan Lehmann. Biologie du Developpement et de la Reproduction, INRA de Jouy-en-Josas, France.
*
* \ingroup FourierTransform
* \ingroup MultiThreaded
* \ingroup ITKFFT
*
* \sa FFTWGlobalConfiguration
*/
template< typename TInputImage, typename TOutputImage=Image< typename TInputImage::PixelType::value_type, TInputImage::ImageDimension> >
class ITK_TEMPLATE_EXPORT FFTWInverseFFTImageFilter:
public InverseFFTImageFilter< TInputImage, TOutputImage >
{
public:
/** Standard class typedefs. */
typedef TInputImage InputImageType;
typedef typename InputImageType::PixelType InputPixelType;
typedef typename InputImageType::SizeType InputSizeType;
typedef TOutputImage OutputImageType;
typedef typename OutputImageType::PixelType OutputPixelType;
typedef typename OutputImageType::SizeType OutputSizeType;
typedef FFTWInverseFFTImageFilter Self;
typedef InverseFFTImageFilter< InputImageType, OutputImageType > Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** The proxy type is a wrapper for the FFTW API since the proxy is
* only defined over double and float, trying to use any other pixel
* type is unsupported, as is trying to use double if only the float
* FFTW version is configured in, or float if only double is
* configured. */
typedef typename fftw::Proxy< OutputPixelType > FFTWProxyType;
typedef typename OutputImageType::RegionType OutputImageRegionType;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(FFTWInverseFFTImageFilter,
InverseFFTImageFilter);
/** Define the image dimension. */
itkStaticConstMacro(ImageDimension, unsigned int, InputImageType::ImageDimension);
/** Set/Get the behavior of wisdom plan creation. The default is
* provided by FFTWGlobalConfiguration::GetPlanRigor().
*
* The parameter is one of the FFTW planner rigor flags FFTW_ESTIMATE, FFTW_MEASURE,
* FFTW_PATIENT, FFTW_EXHAUSTIVE provided by FFTWGlobalConfiguration.
* /sa FFTWGlobalConfiguration
*/
virtual void SetPlanRigor( const int & value )
{
// Use that method to check the value.
FFTWGlobalConfiguration::GetPlanRigorName( value );
if( m_PlanRigor != value )
{
m_PlanRigor = value;
this->Modified();
}
}
itkGetConstReferenceMacro( PlanRigor, int );
void SetPlanRigor( const std::string & name )
{
this->SetPlanRigor( FFTWGlobalConfiguration::GetPlanRigorValue( name ) );
}
SizeValueType GetSizeGreatestPrimeFactor() const ITK_OVERRIDE;
protected:
FFTWInverseFFTImageFilter();
virtual ~FFTWInverseFFTImageFilter() {}
virtual void BeforeThreadedGenerateData() ITK_OVERRIDE;
void ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread,
ThreadIdType threadId ) ITK_OVERRIDE;
void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(FFTWInverseFFTImageFilter);
int m_PlanRigor;
};
} // namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkFFTWInverseFFTImageFilter.hxx"
#endif
#endif //itkFFTWInverseFFTImageFilter_h
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