itkMorphologicalWatershedFromMarkersImageFilter.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 __itkMorphologicalWatershedFromMarkersImageFilter_h
#define __itkMorphologicalWatershedFromMarkersImageFilter_h

#include "itkImageToImageFilter.h"

namespace itk
{
template< typename TInputImage, typename TLabelImage >
class MorphologicalWatershedFromMarkersImageFilter:
  public ImageToImageFilter< TInputImage, TLabelImage >
{
public:
  typedef MorphologicalWatershedFromMarkersImageFilter   Self;
  typedef ImageToImageFilter< TInputImage, TLabelImage > Superclass;
  typedef SmartPointer< Self >                           Pointer;
  typedef SmartPointer< const Self >                     ConstPointer;

  typedef TInputImage                           InputImageType;
  typedef TLabelImage                           LabelImageType;
  typedef typename InputImageType::Pointer      InputImagePointer;
  typedef typename InputImageType::ConstPointer InputImageConstPointer;
  typedef typename InputImageType::RegionType   InputImageRegionType;
  typedef typename InputImageType::PixelType    InputImagePixelType;
  typedef typename LabelImageType::Pointer      LabelImagePointer;
  typedef typename LabelImageType::ConstPointer LabelImageConstPointer;
  typedef typename LabelImageType::RegionType   LabelImageRegionType;
  typedef typename LabelImageType::PixelType    LabelImagePixelType;

  typedef typename LabelImageType::IndexType IndexType;

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

  itkNewMacro(Self);

  itkTypeMacro(MorphologicalWatershedFromMarkersImageFilter,
               ImageToImageFilter);

  void SetMarkerImage(const TLabelImage *input)
  {
    // Process object is not const-correct so the const casting is required.
    this->SetNthInput( 1, const_cast< TLabelImage * >( input ) );
  }

  const LabelImageType * GetMarkerImage() const
  {
    return itkDynamicCastInDebugMode< LabelImageType * >
      (const_cast< DataObject * >( this->ProcessObject::GetInput(1) ) );
  }

  void SetInput1(const TInputImage *input)
  {
    this->SetInput(input);
  }

  void SetInput2(const TLabelImage *input)
  {
    this->SetMarkerImage(input);
  }

  itkSetMacro(FullyConnected, bool);
  itkGetConstReferenceMacro(FullyConnected, bool);
  itkBooleanMacro(FullyConnected);

  itkSetMacro(MarkWatershedLine, bool);
  itkGetConstReferenceMacro(MarkWatershedLine, bool);
  itkBooleanMacro(MarkWatershedLine);

protected:
  MorphologicalWatershedFromMarkersImageFilter();
  ~MorphologicalWatershedFromMarkersImageFilter() {}
  void PrintSelf(std::ostream & os, Indent indent) const;

  void GenerateInputRequestedRegion();

  void EnlargeOutputRequestedRegion( DataObject *itkNotUsed(output) );

  void GenerateData();

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

  bool m_FullyConnected;

  bool m_MarkWatershedLine;
}; // end of class
} // end namespace itk

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

#endif