itkPSMTrimLabelMapImageFilter.h

/*=========================================================================
 *
 *  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 __itkPSMTrimLabelMapImageFilter_h
#define __itkPSMTrimLabelMapImageFilter_h

#include "itkImageToImageFilter.h"

namespace itk
{
template< class TImage>
class ITK_EXPORT PSMTrimLabelMapImageFilter:
  public ImageToImageFilter<TImage, TImage>
{
public:
  typedef PSMTrimLabelMapImageFilter      Self;
  typedef ImageToImageFilter< TImage, TImage > Superclass;
  typedef SmartPointer< Self >                 Pointer;
  typedef SmartPointer< const Self >           ConstPointer;

  typedef TImage ImageType;
  typedef typename ImageType::PixelType  PixelType;
  typedef typename ImageType::PointType PointType;
  typedef typename ImageType::RegionType RegionType;
  typedef typename RegionType::SizeType  SizeType;
  typedef typename RegionType::IndexType IndexType;

  itkNewMacro(Self);

  itkTypeMacro(PSMTrimLabelMapImageFilter, ImageToImageFilter);

  itkStaticConstMacro(Dimension, unsigned int, TImage::ImageDimension);
  
  void GenerateData();

  itkSetMacro(ForegroundValue,PixelType);
  itkGetMacro(ForegroundValue,PixelType);

  itkSetMacro(BackgroundValue,PixelType);
  itkGetMacro(BackgroundValue,PixelType);


  const RegionType &GetBoundingBox() const
  {
    return m_BoundingBox;
  }

protected:
  PSMTrimLabelMapImageFilter();
  ~PSMTrimLabelMapImageFilter() {}
  void PrintSelf(std::ostream & os, Indent indent) const;
  
  void IsolateLargestComponent(ImageType *) const;

  void FillHoles(ImageType *) const;

  void Center(ImageType *) const;

  void Crop(ImageType *);

  virtual void GenerateOutputInformation();

  virtual void GenerateInputRequestedRegion();


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

  RegionType m_BoundingBox;
  PixelType  m_ForegroundValue;
  PixelType  m_BackgroundValue;
};
} // end namespace itk

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

#endif