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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 __itkAlternatingValueDifferenceImageFilter_h
#define __itkAlternatingValueDifferenceImageFilter_h
#include "itkImageToImageFilter.h"
#include "itkExtrapolateImageFunction.h"
#include "itkInterpolateImageFunction.h"
#include "itkLinearInterpolateImageFunction.h"
namespace itk
{
/** \class AlternatingValueDifferenceImageFilter
* \brief Finds difference signal from alternating signal
*
* This filter is templated over the input image type and the output image
* type. Each signal is interpolated over the entire range of the
* subtraction dimension. The output image is the difference between
* the two intepolated signals.
*
* \ingroup GeometricTransform
* \ingroup MultiThreaded
* \ingroup Streamed
*
* \author Jeffrey Duda
*
*/
template <class TInputImage, class TOutputImage>
class AlternatingValueDifferenceImageFilter :
public ImageToImageFilter<TInputImage, TOutputImage>
{
public:
/** Standard class typedefs. */
typedef AlternatingValueDifferenceImageFilter Self;
typedef ImageToImageFilter<TInputImage, TOutputImage> Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(AlternatingValueDifferenceImageFilter, ImageToImageFilter);
/** Compiler can't inherit typedef? */
typedef typename Superclass::InputImageType InputImageType;
typedef typename Superclass::OutputImageType OutputImageType;
typedef typename InputImageType::Pointer InputImagePointer;
typedef typename OutputImageType::Pointer OutputImagePointer;
typedef typename InputImageType::RegionType InputImageRegionType;
typedef typename OutputImageType::RegionType OutputImageRegionType;
typedef LinearInterpolateImageFunction<InputImageType> DefaultInterpolatorType;
typedef typename DefaultInterpolatorType::Pointer DefaultInterpolatorPointerType;
typedef InterpolateImageFunction< InputImageType, double > InterpolatorType;
typedef typename InterpolatorType::Pointer InterpolatorPointerType;
/** Compiler can't inherit ImageDimension enumeration? */
itkStaticConstMacro(InputImageDimension, unsigned int,
TInputImage::ImageDimension);
itkStaticConstMacro(OutputImageDimension, unsigned int,
TOutputImage::ImageDimension);
itkGetMacro( SubtractionDimension, unsigned int );
itkSetMacro( SubtractionDimension, unsigned int );
itkGetMacro( IndexPadding, unsigned int );
itkSetMacro( IndexPadding, unsigned int );
/** Set the interpolator function. The default is
* LinearInterpolateImageFunction<InputImageType,
* TInterpolatorPrecisionType>. Some
* other options are NearestNeighborInterpolateImageFunction
* (useful for binary masks and other images with a small number of
* possible pixel values), and BSplineInterpolateImageFunction
* (which provides a higher order of interpolation). */
itkSetObjectMacro(ControlInterpolator, InterpolatorType);
itkSetObjectMacro(LabelInterpolator, InterpolatorType);
/** Get a pointer to the interpolator function. */
itkGetConstObjectMacro(ControlInterpolator, InterpolatorType);
itkGetConstObjectMacro(LabelInterpolator, InterpolatorType);
itkGetModifiableObjectMacro(ControlImage, InputImageType);
itkGetModifiableObjectMacro(LabelImage, InputImageType);
itkGetModifiableObjectMacro(ControlOutputImage, InputImageType);
itkGetModifiableObjectMacro(LabelOutputImage, InputImageType);
#ifdef ITK_USE_CONCEPT_CHECKING
/** Begin concept checking */
itkConceptMacro( InputConvertibleToOutputCheck,
( Concept::Convertible<typename TInputImage::PixelType,
typename TOutputImage::PixelType> ) );
itkConceptMacro( DimensionCheck,
( Concept::SameDimension<InputImageDimension,
OutputImageDimension> ) );
/** End concept checking */
#endif
protected:
AlternatingValueDifferenceImageFilter();
~AlternatingValueDifferenceImageFilter()
{
}
void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;
/** Override VeriyInputInformation() to add the additional check
* that all inputs have the same number of components.
*
* \sa ProcessObject::VerifyInputInformation
*/
virtual void VerifyInputInformation() ITK_OVERRIDE;
/** Overrides GenerateOutputInformation() in order to produce
* an image which has a different information than the first input.
* \sa ProcessObject::GenerateOutputInformaton() */
virtual void GenerateOutputInformation() ITK_OVERRIDE;
/** Overrides GenerateInputRequestedRegion() in order to inform
* the pipeline execution model of different input requested regions
* than the output requested region.
* \sa ImageToImageFilter::GenerateInputRequestedRegion() */
//virtual void GenerateInputRequestedRegion();
/** This method is used to set the state of the filter before
* multi-threading. */
virtual void BeforeThreadedGenerateData() ITK_OVERRIDE;
/** AlternatingValueDifferenceImageFilter can be implemented as a multithreaded filter.
* \sa ImageSource::ThreadedGenerateData(),
* ImageSource::GenerateData() */
virtual void ThreadedGenerateData(const OutputImageRegionType &
outputRegionForThread, ThreadIdType threadId) ITK_OVERRIDE;
private:
AlternatingValueDifferenceImageFilter(const Self &); // purposely not implemented
void operator=(const Self &); // purposely not implemented
/** IndexValueType is used to switch among the inputs and
* is used as the index value of the new dimension */
typedef unsigned int IndexValueType;
unsigned int m_SubtractionDimension;
unsigned int m_IndexPadding;
InputImagePointer m_ControlImage;
InputImagePointer m_LabelImage;
InputImagePointer m_ControlOutputImage;
InputImagePointer m_LabelOutputImage;
InterpolatorPointerType m_ControlInterpolator; // Image function for
// interpolation
InterpolatorPointerType m_LabelInterpolator; // Image function for
// interpolation
// ExtrapolatorPointerType m_Extrapolator; // Image function for
// extrapolation
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkAlternatingValueDifferenceImageFilter.hxx"
#endif
#endif
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