itkConvolutionImageFilterBase.h

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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 __itkConvolutionImageFilterBase_h
#define __itkConvolutionImageFilterBase_h

#include "itkImageToImageFilter.h"
#include "itkZeroFluxNeumannBoundaryCondition.h"

namespace itk
{
template< typename TInputImage,
          typename TKernelImage = TInputImage,
          typename TOutputImage = TInputImage >
class ConvolutionImageFilterBase :
  public ImageToImageFilter< TInputImage, TOutputImage >
{
public:
  typedef ConvolutionImageFilterBase                      Self;
  typedef ImageToImageFilter< TInputImage, TOutputImage > Superclass;
  typedef SmartPointer< Self >                            Pointer;
  typedef SmartPointer< const Self >                      ConstPointer;

  itkTypeMacro(FFTConvolutionImageFilter, ImageToImageFilter);

  itkStaticConstMacro(ImageDimension, unsigned int,
                      TInputImage::ImageDimension);

  typedef TInputImage                           InputImageType;
  typedef TOutputImage                          OutputImageType;
  typedef TKernelImage                          KernelImageType;
  typedef typename InputImageType::PixelType    InputPixelType;
  typedef typename OutputImageType::PixelType   OutputPixelType;
  typedef typename KernelImageType::PixelType   KernelPixelType;
  typedef typename InputImageType::IndexType    InputIndexType;
  typedef typename OutputImageType::IndexType   OutputIndexType;
  typedef typename KernelImageType::IndexType   KernelIndexType;
  typedef typename InputImageType::SizeType     InputSizeType;
  typedef typename OutputImageType::SizeType    OutputSizeType;
  typedef typename KernelImageType::SizeType    KernelSizeType;
  typedef typename InputSizeType::SizeValueType SizeValueType;
  typedef typename InputImageType::RegionType   InputRegionType;
  typedef typename OutputImageType::RegionType  OutputRegionType;
  typedef typename KernelImageType::RegionType  KernelRegionType;

  typedef ImageBoundaryCondition< TInputImage >           BoundaryConditionType;
  typedef BoundaryConditionType *                         BoundaryConditionPointerType;
  typedef ZeroFluxNeumannBoundaryCondition< TInputImage > DefaultBoundaryConditionType;

  itkSetMacro(BoundaryCondition, BoundaryConditionPointerType);
  itkGetConstMacro(BoundaryCondition, BoundaryConditionPointerType);

  itkSetInputMacro(KernelImage, KernelImageType);
  itkGetInputMacro(KernelImage, KernelImageType);

  itkSetMacro(Normalize, bool);
  itkGetConstMacro(Normalize, bool);
  itkBooleanMacro(Normalize);

  typedef enum
  {
    SAME = 0,
    VALID
  } OutputRegionModeType;

  itkSetEnumMacro(OutputRegionMode, OutputRegionModeType);
  itkGetEnumMacro(OutputRegionMode, OutputRegionModeType);
  virtual void SetOutputRegionModeToSame();
  virtual void SetOutputRegionModeToValid();

protected:
  ConvolutionImageFilterBase();
  ~ConvolutionImageFilterBase() {}

  void PrintSelf(std::ostream & os, Indent indent) const;

  void GenerateOutputInformation();

  OutputRegionType GetValidRegion() const;

  virtual void VerifyInputInformation() {};

private:
  ConvolutionImageFilterBase(const Self &); //purposely not implemented
  void operator=(const Self &);             //purposely not implemented

  bool m_Normalize;

  DefaultBoundaryConditionType m_DefaultBoundaryCondition;
  BoundaryConditionPointerType m_BoundaryCondition;

  OutputRegionModeType m_OutputRegionMode;
};
} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkConvolutionImageFilterBase.hxx"
#endif

#endif