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/*=========================================================================
Program: ORFEO Toolbox
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Centre National d'Etudes Spatiales. All rights reserved.
See OTBCopyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef otbMeanShiftConnectedComponentSegmentationFilter_h
#define otbMeanShiftConnectedComponentSegmentationFilter_h
#include "itkMacro.h"
#include "otbConnectedComponentMuParserFunctor.h"
#include "itkConnectedComponentFunctorImageFilter.h"
#include "otbMaskMuParserFilter.h"
#include "itkRelabelComponentImageFilter.h"
#include "otbMeanShiftSmoothingImageFilter.h"
namespace otb {
/** \class MeanShiftConnectedComponentSegmentationFilter
* \brief [internal] Helper class to perform connected component segmentation on an input image,
*
*
* The whole chain is described in :
* http://wiki.orfeo-toolbox.org/index.php/Connected_component_segmentation_module
*
* This class wraps a processing chain based on meanshift filtering followed by a connected component segmentation,
*
* An optional mask can be applied to segment only the pixels inside the mask.
*
* Parameters of the chain are :
* - MaskExpression : mathematical expression to apply on the input image to make a mask
* - ConnectedComponentExpression : mathematical expression which connects two pixels
* - MinimumObjectSize : minimum object size kept after segmentation
*
*
* \ingroup OTBMeanShift
*/
template <class TVInputImage, class TMaskImage,class TLabelImage>
class MeanShiftConnectedComponentSegmentationFilter : public itk::ImageToImageFilter<TVInputImage, TLabelImage>
{
public:
/** Standard Self typedef */
typedef MeanShiftConnectedComponentSegmentationFilter Self;
typedef itk::ImageToImageFilter<TVInputImage, TLabelImage> Superclass;
typedef itk::SmartPointer<Self> Pointer;
typedef itk::SmartPointer<const Self> ConstPointer;
typedef unsigned int ObjectSizeType;
/** Some convenient typedefs. */
typedef TVInputImage VectorImageType;
typedef TMaskImage MaskImageType;
typedef TLabelImage LabelImageType;
typedef typename VectorImageType::Pointer VectorImagePointerType;
typedef typename VectorImageType::PixelType VectorImagePixelType;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Runtime information support. */
itkTypeMacro(MeanShiftConnectedComponentSegmentationFilter, ImageToImageFilter);
/** ImageDimension constants */
itkStaticConstMacro(InputImageDimension, unsigned int,TVInputImage::ImageDimension);
// Mask generation
typedef Functor::ConnectedComponentMuParserFunctor<VectorImagePixelType> FunctorType;
typedef itk::ConnectedComponentFunctorImageFilter
<VectorImageType, LabelImageType, FunctorType, MaskImageType>
ConnectedComponentFilterType;
// mask typedef
typedef otb::MaskMuParserFilter<VectorImageType, MaskImageType> MaskMuParserFilterType;
// Labelization
typedef itk::RelabelComponentImageFilter<LabelImageType, LabelImageType>
RelabelComponentFilterType;
typedef double KernelType;
typedef otb::MeanShiftSmoothingImageFilter
<VectorImageType, VectorImageType>
MeanShiftFilterType;
typedef typename MeanShiftFilterType::Pointer MeanShiftFilterPointerType;
// ** // meanshift filter
/* Set/Get mean shift filter */
itkSetObjectMacro(MeanShiftFilter, MeanShiftFilterType);
itkGetObjectMacro(MeanShiftFilter, MeanShiftFilterType);
/* Set the mathematical expression used for the mask */
itkSetStringMacro(MaskExpression);
/* Get the mathematical expression used for the mask */
itkGetStringMacro(MaskExpression);
/* Set the mathematical expression used during connected component segmentation */
itkSetStringMacro(ConnectedComponentExpression);
/* Get the mathematical expression used during connected component segmentation */
itkGetStringMacro(ConnectedComponentExpression);
/* Set the minimum object size */
itkSetMacro(MinimumObjectSize, ObjectSizeType);
/* Get the minimum object size */
itkGetMacro(MinimumObjectSize, ObjectSizeType);
protected:
MeanShiftConnectedComponentSegmentationFilter();
~MeanShiftConnectedComponentSegmentationFilter() ITK_OVERRIDE;
void GenerateInputRequestedRegion() ITK_OVERRIDE;
void GenerateData() ITK_OVERRIDE;
private:
MeanShiftFilterPointerType m_MeanShiftFilter;
/* CC parameters */
ObjectSizeType m_MinimumObjectSize;
std::string m_MaskExpression;
std::string m_ConnectedComponentExpression;
/* */
};
} // end namespace itk
#ifndef OTB_MANUAL_INSTANTIATION
#include "otbMeanShiftConnectedComponentSegmentationFilter.txx"
#endif
#endif
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