mirror of
https://gitlab.kitware.com/vtk/vtk-m
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55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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//
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//============================================================================
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#ifndef vtk_m_filter_ImageMedian_h
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#define vtk_m_filter_ImageMedian_h
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#include <vtkm/filter/FilterField.h>
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/// \brief Median algorithm for general image blur
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///
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/// The ImageMedian filter finds the median value for each pixel in an image.
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/// Currently the algorithm has the following restrictions.
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/// - Only supports a neighborhood of 5x5x1 or 3x3x1
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///
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/// This means that volumes are basically treated as an image stack
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/// along the z axis
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///
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/// Default output field name is 'median'
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namespace vtkm
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{
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namespace filter
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{
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class ImageMedian : public vtkm::filter::FilterField<ImageMedian>
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{
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int Neighborhood = 1;
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public:
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using SupportedTypes = vtkm::TypeListScalarAll;
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VTKM_CONT ImageMedian() { this->SetOutputFieldName("median"); }
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VTKM_CONT void Perform3x3() { this->Neighborhood = 1; };
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VTKM_CONT void Perform5x5() { this->Neighborhood = 2; };
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template <typename T, typename StorageType, typename DerivedPolicy>
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VTKM_CONT vtkm::cont::DataSet DoExecute(const vtkm::cont::DataSet& input,
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const vtkm::cont::ArrayHandle<T, StorageType>& field,
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const vtkm::filter::FieldMetadata& fieldMetadata,
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const vtkm::filter::PolicyBase<DerivedPolicy>&);
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};
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}
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} // namespace vtkm::filter
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#include <vtkm/filter/ImageMedian.hxx>
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#endif //vtk_m_filter_ImageMedian_h
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