itkMIDASRegionOfInterestCalculator.h

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/*=============================================================================

  NifTK: A software platform for medical image computing.

  Copyright (c) University College London (UCL). All rights reserved.

  This software is distributed WITHOUT ANY WARRANTY; without even
  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  PURPOSE.

  See LICENSE.txt in the top level directory for details.

=============================================================================*/

#ifndef itkMIDASRegionOfInterestCalculator_h
#define itkMIDASRegionOfInterestCalculator_h

#include <itkObject.h>
#include <itkObjectFactory.h>
#include <itkImage.h>
#include <itkMIDASHelper.h>

namespace itk
{

template <class TPixel, unsigned int VImageDimension>
class ITK_EXPORT MIDASRegionOfInterestCalculator : public Object {

public:

  typedef MIDASRegionOfInterestCalculator Self;
  typedef Object                          Superclass;
  typedef SmartPointer<Self>              Pointer;
  typedef SmartPointer<const Self>        ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(MIDASRegionOfInterestCalculator, Object);

  itkStaticConstMacro(ImageDimension, unsigned int, VImageDimension);

  typedef TPixel PixelType;
  typedef Image<TPixel, VImageDimension>    ImageType;
  typedef typename ImageType::Pointer       ImagePointer;
  typedef typename ImageType::IndexType     IndexType;
  typedef typename ImageType::SizeType      SizeType;
  typedef typename ImageType::RegionType    RegionType;
  typedef typename ImageType::DirectionType DirectionType;

  std::string GetOrientationString(ImageType* image);

  int GetAxis(ImageType* image, Orientation currentOrientation);

  int GetPlusOrUpDirection(ImageType* image, Orientation currentOrientation);

  RegionType GetPlusOrUpRegion(ImageType* image, Orientation currentOrientation, int sliceNumber);

  RegionType GetMinusOrDownRegion(ImageType* image, Orientation currentOrientation, int sliceNumber);

  RegionType GetSliceRegion(ImageType* image, Orientation currentOrientation, int sliceNumber);

  std::vector<RegionType> GetPlusOrUpRegionAsSlices(ImageType* image, Orientation currentOrientation, int sliceNumber);

  std::vector<RegionType> GetMinusOrDownRegionAsSlices(ImageType* image, Orientation currentOrientation, int sliceNumber);

  std::vector<RegionType> SplitRegionBySlices(RegionType regionOfInterest, ImageType* image, Orientation currentOrientation);

  RegionType GetMinimumRegion(ImageType *image, PixelType background);

protected:
  MIDASRegionOfInterestCalculator();
  virtual ~MIDASRegionOfInterestCalculator() {}

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

  void CheckSliceNumber(ImageType* image, Orientation currentOrientation, int sliceNumber);

  RegionType GetRegion(ImageType* image, Orientation currentOrientation, int sliceNumber, bool doSingleSlice, bool doPlus);

  std::vector<RegionType> GetRegionAsSlices(ImageType* image, Orientation currentOrientation, int sliceNumber, bool doSingleSlice, bool doPlus);

};

}

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkMIDASRegionOfInterestCalculator.txx"
#endif

#endif