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/usr/include/ITK-4.5/itkShapeLabelObjectAccessors.h is in libinsighttoolkit4-dev 4.5.0-3.

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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 __itkShapeLabelObjectAccessors_h
#define __itkShapeLabelObjectAccessors_h

#include "itkLabelObjectAccessors.h"
#include "itkIntTypes.h"

/*
 *
 * This code was contributed in the Insight Journal paper:
 * "Label object representation and manipulation with ITK"
 * by Lehmann G.
 * http://hdl.handle.net/1926/584
 * http://www.insight-journal.org/browse/publication/176
 *
 */

namespace itk
{
namespace Functor
{
template< typename TLabelObject >
class NumberOfPixelsLabelObjectAccessor
{
public:
  typedef TLabelObject  LabelObjectType;
  typedef SizeValueType AttributeValueType;

  inline AttributeValueType operator()(const LabelObjectType *labelObject) const
  {
    return labelObject->GetNumberOfPixels();
  }
};

template< typename TLabelObject >
class BoundingBoxLabelObjectAccessor
{
public:
  typedef TLabelObject                         LabelObjectType;
  typedef typename LabelObjectType::RegionType AttributeValueType;

  inline AttributeValueType operator()(const LabelObjectType *labelObject) const
  {
    return labelObject->GetBoundingBox();
  }
};

template< typename TLabelObject >
class PhysicalSizeLabelObjectAccessor
{
public:
  typedef TLabelObject LabelObjectType;
  typedef double       AttributeValueType;

  inline AttributeValueType operator()(const LabelObjectType *labelObject) const
  {
    return labelObject->GetPhysicalSize();
  }
};

template< typename TLabelObject >
class NumberOfPixelsOnBorderLabelObjectAccessor
{
public:
  typedef TLabelObject  LabelObjectType;
  typedef SizeValueType AttributeValueType;

  inline AttributeValueType operator()(const LabelObjectType *labelObject) const
  {
    return labelObject->GetNumberOfPixelsOnBorder();
  }
};

template< typename TLabelObject >
class PerimeterOnBorderLabelObjectAccessor
{
public:
  typedef TLabelObject LabelObjectType;
  typedef double       AttributeValueType;

  inline AttributeValueType operator()(const LabelObjectType *labelObject) const
  {
    return labelObject->GetPerimeterOnBorder();
  }
};

template< typename TLabelObject >
class CentroidLabelObjectAccessor
{
public:
  typedef TLabelObject                           LabelObjectType;
  typedef typename LabelObjectType::CentroidType AttributeValueType;

  inline AttributeValueType operator()(const LabelObjectType *labelObject) const
  {
    return labelObject->GetCentroid();
  }
};

template< typename TLabelObject >
class FeretDiameterLabelObjectAccessor
{
public:
  typedef TLabelObject LabelObjectType;
  typedef double       AttributeValueType;

  inline AttributeValueType operator()(const LabelObjectType *labelObject) const
  {
    return labelObject->GetFeretDiameter();
  }
};

template< typename TLabelObject >
class PrincipalMomentsLabelObjectAccessor
{
public:
  typedef TLabelObject                         LabelObjectType;
  typedef typename LabelObjectType::VectorType AttributeValueType;

  inline AttributeValueType operator()(const LabelObjectType *labelObject) const
  {
    return labelObject->GetPrincipalMoments();
  }
};

template< typename TLabelObject >
class PrincipalAxesLabelObjectAccessor
{
public:
  typedef TLabelObject                         LabelObjectType;
  typedef typename LabelObjectType::MatrixType AttributeValueType;

  inline AttributeValueType operator()(const LabelObjectType *labelObject) const
  {
    return labelObject->GetPrincipalAxes();
  }
};

template< typename TLabelObject >
class ElongationLabelObjectAccessor
{
public:
  typedef TLabelObject LabelObjectType;
  typedef double       AttributeValueType;

  inline AttributeValueType operator()(const LabelObjectType *labelObject) const
  {
    return labelObject->GetElongation();
  }
};

template< typename TLabelObject >
class PerimeterLabelObjectAccessor
{
public:
  typedef TLabelObject LabelObjectType;
  typedef double       AttributeValueType;

  inline AttributeValueType operator()(const LabelObjectType *labelObject) const
  {
    return labelObject->GetPerimeter();
  }
};

template< typename TLabelObject >
class RoundnessLabelObjectAccessor
{
public:
  typedef TLabelObject LabelObjectType;
  typedef double       AttributeValueType;

  inline AttributeValueType operator()(const LabelObjectType *labelObject) const
  {
    return labelObject->GetRoundness();
  }
};

template< typename TLabelObject >
class EquivalentSphericalRadiusLabelObjectAccessor
{
public:
  typedef TLabelObject LabelObjectType;
  typedef double       AttributeValueType;

  inline AttributeValueType operator()(const LabelObjectType *labelObject) const
  {
    return labelObject->GetEquivalentSphericalRadius();
  }
};

template< typename TLabelObject >
class EquivalentSphericalPerimeterLabelObjectAccessor
{
public:
  typedef TLabelObject LabelObjectType;
  typedef double       AttributeValueType;

  inline AttributeValueType operator()(const LabelObjectType *labelObject) const
  {
    return labelObject->GetEquivalentSphericalPerimeter();
  }
};

template< typename TLabelObject >
class EquivalentEllipsoidDiameterLabelObjectAccessor
{
public:
  typedef TLabelObject                         LabelObjectType;
  typedef typename LabelObjectType::VectorType AttributeValueType;

  inline AttributeValueType operator()(const LabelObjectType *labelObject) const
  {
    return labelObject->GetEquivalentEllipsoidDiameter();
  }
};

template< typename TLabelObject >
class FlatnessLabelObjectAccessor
{
public:
  typedef TLabelObject LabelObjectType;
  typedef double       AttributeValueType;

  inline AttributeValueType operator()(const LabelObjectType *labelObject) const
  {
    return labelObject->GetFlatness();
  }
};

template< typename TLabelObject >
class PerimeterOnBorderRatioLabelObjectAccessor
{
public:
  typedef TLabelObject LabelObjectType;
  typedef double       AttributeValueType;

  inline AttributeValueType operator()(const LabelObjectType *labelObject) const
  {
    return labelObject->GetPerimeterOnBorderRatio();
  }
};

}
} // end namespace itk

#endif