itkLaplacianImageFilter.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 __itkLaplacianImageFilter_h
#define __itkLaplacianImageFilter_h

#include "itkImageToImageFilter.h"

namespace itk
{
template< class TInputImage, class TOutputImage >
class ITK_EXPORT LaplacianImageFilter:
  public ImageToImageFilter< TInputImage, TOutputImage >
{
public:

  typedef LaplacianImageFilter                            Self;
  typedef ImageToImageFilter< TInputImage, TOutputImage > Superclass;

  typedef typename TOutputImage::PixelType         OutputPixelType;
  typedef typename TOutputImage::InternalPixelType OutputInternalPixelType;
  typedef typename TInputImage::PixelType          InputPixelType;
  typedef typename TInputImage::InternalPixelType  InputInternalPixelType;
  itkStaticConstMacro(InputImageDimension, unsigned int,
                      TInputImage::ImageDimension);
  itkStaticConstMacro(ImageDimension, unsigned int,
                      TOutputImage::ImageDimension);

  typedef TInputImage                      InputImageType;
  typedef TOutputImage                     OutputImageType;
  typedef typename InputImageType::Pointer InputImagePointer;

  typedef SmartPointer< Self >       Pointer;
  typedef SmartPointer< const Self > ConstPointer;

  itkTypeMacro(LaplacianImageFilter, ImageToImageFilter);

  itkNewMacro(Self);

  virtual void GenerateInputRequestedRegion()
  throw( InvalidRequestedRegionError );

  itkBooleanMacro( UseImageSpacing );

  itkSetMacro(UseImageSpacing, bool);
  itkGetConstMacro(UseImageSpacing, bool);

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro( SameDimensionCheck,
                   ( Concept::SameDimension< InputImageDimension, ImageDimension > ) );
  itkConceptMacro( InputPixelTypeIsFloatingPointCheck,
                   ( Concept::IsFloatingPoint< InputPixelType > ) );
  itkConceptMacro( OutputPixelTypeIsFloatingPointCheck,
                   ( Concept::IsFloatingPoint< OutputPixelType > ) );

#endif

protected:
  LaplacianImageFilter()
  {
    m_UseImageSpacing = true;
  }

  virtual ~LaplacianImageFilter()  {}

  void GenerateData();

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

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

  bool m_UseImageSpacing;
};
} // end namespace itk

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

#endif