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/*
* Copyright (C) 2005-2020 Centre National d'Etudes Spatiales (CNES)
*
* This file is part of Orfeo Toolbox
*
* https://www.orfeo-toolbox.org/
*
* 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
*
* 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 otbScalarImageToPanTexTextureFilter_h
#define otbScalarImageToPanTexTextureFilter_h
#include "otbGreyLevelCooccurrenceIndexedList.h"
#include "itkImageToImageFilter.h"
namespace otb
{
/** \class ScalarImageToPanTexTextureFilter
* \brief This class computes a texture derived built-up presence index (PanTex)
*
* This class computes a texture-derived built-up presence index (PanTex) from textural
* characteristics of scalar images.It is the min value of the contrast in 8 directions.
*
* Print references:
*
* Pesari, M., A. Gerhardinger, F. Kayitakire. 2008. A robust built-up area presence
* index by anisotropic rotation-invariant textural measure.
* IEEE Journal of selected topics in applied earth observations and remote sensing.
* Vol1, NO3.
*
*
* \sa otb::GreyLevelCooccurrenceIndexedList
*
*
* \ingroup OTBTextures
*/
template <class TInpuImage, class TOutputImage>
class ScalarImageToPanTexTextureFilter : public itk::ImageToImageFilter<TInpuImage, TOutputImage>
{
public:
/** Standard class typedefs */
typedef ScalarImageToPanTexTextureFilter Self;
typedef itk::ImageToImageFilter<TInpuImage, TOutputImage> Superclass;
typedef itk::SmartPointer<Self> Pointer;
typedef itk::SmartPointer<const Self> ConstPointer;
/** Creation through the object factory */
itkNewMacro(Self);
/** RTTI */
itkTypeMacro(ScalarImageToPanTexTextureFilter, ImageToImageFilter);
/** Template class typedefs */
typedef TInpuImage InputImageType;
typedef typename InputImageType::Pointer InputImagePointerType;
typedef typename InputImageType::PixelType InputPixelType;
typedef typename InputImageType::RegionType InputRegionType;
typedef typename InputRegionType::SizeType SizeType;
typedef typename InputImageType::OffsetType OffsetType;
typedef typename std::vector<OffsetType> OffsetListType;
typedef TOutputImage OutputImageType;
typedef typename OutputImageType::Pointer OutputImagePointerType;
typedef typename OutputImageType::RegionType OutputRegionType;
typedef GreyLevelCooccurrenceIndexedList<InputPixelType> CooccurrenceIndexedListType;
typedef typename CooccurrenceIndexedListType::Pointer CooccurrenceIndexedListPointerType;
typedef typename CooccurrenceIndexedListType::ConstPointer CooccurrenceIndexedListConstPointerType;
typedef typename CooccurrenceIndexedListType::IndexType CooccurrenceIndexType;
typedef typename CooccurrenceIndexedListType::PixelValueType PixelValueType;
typedef typename CooccurrenceIndexedListType::RelativeFrequencyType RelativeFrequencyType;
typedef typename CooccurrenceIndexedListType::VectorType VectorType;
typedef typename VectorType::iterator VectorIteratorType;
typedef typename VectorType::const_iterator VectorConstIteratorType;
/** Set the radius of the window on which textures will be computed */
itkSetMacro(Radius, SizeType);
/** Get the radius of the window on which textures will be computed */
itkGetMacro(Radius, SizeType);
/** Set the number of bin per axis for histogram generation */
itkSetMacro(NumberOfBinsPerAxis, unsigned int);
/** Get the number of bin per axis for histogram generation */
itkGetMacro(NumberOfBinsPerAxis, unsigned int);
/** Set the input image minimum */
itkSetMacro(InputImageMinimum, InputPixelType);
/** Get the input image minimum */
itkGetMacro(InputImageMinimum, InputPixelType);
/** Set the input image maximum */
itkSetMacro(InputImageMaximum, InputPixelType);
/** Get the input image maximum */
itkGetMacro(InputImageMaximum, InputPixelType);
protected:
/** Constructor */
ScalarImageToPanTexTextureFilter();
/** Destructor */
~ScalarImageToPanTexTextureFilter() override = default;
/** Generate the input requested region */
void GenerateInputRequestedRegion() override;
/** Parallel textures extraction */
void ThreadedGenerateData(const OutputRegionType& outputRegion, itk::ThreadIdType threadId) override;
private:
ScalarImageToPanTexTextureFilter(const Self&) = delete;
void operator=(const Self&) = delete;
/** Convenient method to compute union of 2 regions */
static OutputRegionType RegionUnion(const OutputRegionType& region1, const OutputRegionType& region2);
/** Radius of the window on which to compute textures */
SizeType m_Radius;
/** List of Offsets for co-occurence */
OffsetListType m_OffsetList;
/** Number of bins per axis for histogram generation */
unsigned int m_NumberOfBinsPerAxis;
/** Input image minimum */
InputPixelType m_InputImageMinimum;
/** Input image maximum */
InputPixelType m_InputImageMaximum;
};
} // End namespace otb
#ifndef OTB_MANUAL_INSTANTIATION
#include "otbScalarImageToPanTexTextureFilter.hxx"
#endif
#endif
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