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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 itkShapePositionLabelMapFilter_h
#define itkShapePositionLabelMapFilter_h
#include "itkInPlaceLabelMapFilter.h"
namespace itk {
/** \class ShapePositionLabelMapFilter
* \brief Mark a single pixel in the label object which correspond to a position given by an attribute
*
* \author Gaetan Lehmann. Biologie du Developpement et de la Reproduction, INRA de Jouy-en-Josas, France.
*
* This implementation was taken from the Insight Journal paper:
* https://hdl.handle.net/1926/584 or
* http://www.insight-journal.org/browse/publication/176
*
* \sa ShapeLabelObject, BinaryShapeOpeningImageFilter, LabelStatisticsOpeningImageFilter
* \ingroup ImageEnhancement MathematicalMorphologyImageFilters
* \ingroup ITKLabelMap
*/
template<typename TImage>
class ITK_TEMPLATE_EXPORT ShapePositionLabelMapFilter :
public InPlaceLabelMapFilter<TImage>
{
public:
/** Standard class typedefs. */
typedef ShapePositionLabelMapFilter Self;
typedef InPlaceLabelMapFilter<TImage> Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Some convenient typedefs. */
typedef TImage ImageType;
typedef typename ImageType::Pointer ImagePointer;
typedef typename ImageType::ConstPointer ImageConstPointer;
typedef typename ImageType::PixelType PixelType;
typedef typename ImageType::IndexType IndexType;
typedef typename ImageType::LabelObjectType LabelObjectType;
typedef typename LabelObjectType::AttributeType AttributeType;
/** ImageDimension constants */
itkStaticConstMacro(ImageDimension, unsigned int,
TImage::ImageDimension);
/** Standard New method. */
itkNewMacro(Self);
/** Runtime information support. */
itkTypeMacro(ShapePositionLabelMapFilter,
InPlaceLabelMapFilter);
#ifdef ITK_USE_CONCEPT_CHECKING
// Begin concept checking
/* itkConceptMacro(InputEqualityComparableCheck,
(Concept::EqualityComparable<InputImagePixelType>));
itkConceptMacro(IntConvertibleToInputCheck,
(Concept::Convertible<int, InputImagePixelType>));
itkConceptMacro(InputOStreamWritableCheck,
(Concept::OStreamWritable<InputImagePixelType>));*/
// End concept checking
#endif
/**
* Set/Get the attribute to use to get the object position. The default
* is "Centroid".
*/
itkGetConstMacro( Attribute, AttributeType );
itkSetMacro( Attribute, AttributeType );
void SetAttribute( const std::string & s )
{
this->SetAttribute( LabelObjectType::GetAttributeFromName( s ) );
}
protected:
ShapePositionLabelMapFilter();
~ShapePositionLabelMapFilter() ITK_OVERRIDE {};
virtual void ThreadedProcessLabelObject( LabelObjectType * labelObject ) ITK_OVERRIDE;
template< typename TAttributeAccessor >
void TemplatedThreadedProcessLabelObject( const TAttributeAccessor & accessor, bool physical, LabelObjectType * labelObject )
{
typedef typename TAttributeAccessor::AttributeValueType AttributeValueType;
AttributeValueType position = accessor( labelObject );
// change it to an index position if it is physical
IndexType idx;
if( physical )
{
typedef double CoordinateType;
Point< CoordinateType, ImageDimension > point;
// copy the position to a point, required by TransformPhysicalPointToIndex
for(unsigned int i=0; i<ImageDimension; i++ )
{
// FIXME: This is a bug. The cast should be as in the following line
// where CoordinateType is used as the type to cast to. We are temporarily
// keeping this original line here to avoid confusing the patch for 64 bits.
point[i] = static_cast<OffsetValueType>( position[i] ); // FIXME: use next line instead.
// point[i] = static_cast<CoordinateType>( position[i] );
}
this->GetOutput()->TransformPhysicalPointToIndex( point, idx );
}
else
{
// copy the position to the index, to avoid warnings
for(unsigned int i=0; i<ImageDimension; i++ )
{
idx[i] = static_cast<IndexValueType>( position[i] );
}
}
// clear the label object
labelObject->Clear();
// and mark only the pixel we are interested in
labelObject->AddIndex( idx );
}
void PrintSelf(std::ostream& os, Indent indent) const ITK_OVERRIDE;
AttributeType m_Attribute;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(ShapePositionLabelMapFilter);
}; // end of class
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkShapePositionLabelMapFilter.hxx"
#endif
#endif
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