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https://gitlab.kitware.com/vtk/vtk-m
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a17ebdf52a
The original design of the filter base class required several specialized base classes to control what information was pulled from the input `DataSet` and provided to the derived class. Since the filter base class was redesigned, the derived classes all get a `DataSet` and pull their own information from it. Thus, most specialized filter base classes became unnecessary and removed. The one substantial exception was the `FilterField`. This filter base class managed input and output arrays. This was kept separate from the base `Filter` because not all filters need the ability to select this information. That said, this separation has not been particularly helpful. There are several other features of `Filter` that does not apply to all subclasses. Furthermore, there are several derived filters that are using `FilterField` merely to pick a single part, like selecting a coordinate system, and ignoring the rest of the abilities. Thus, it makes more sense to deprecate `FilterField` and have these classes inherit directly from `Filter`.
51 lines
1.6 KiB
C++
51 lines
1.6 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_image_processing_ImageMedian_h
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#define vtk_m_filter_image_processing_ImageMedian_h
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#include <vtkm/filter/Filter.h>
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#include <vtkm/filter/image_processing/vtkm_filter_image_processing_export.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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namespace image_processing
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{
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class VTKM_FILTER_IMAGE_PROCESSING_EXPORT ImageMedian : public vtkm::filter::Filter
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{
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public:
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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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private:
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VTKM_CONT vtkm::cont::DataSet DoExecute(const vtkm::cont::DataSet& input) override;
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int Neighborhood = 1;
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};
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} // namespace image_processing
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} // namespace filter
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} // namespace vtkm
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#endif //vtk_m_filter_image_processing_ImageMedian_h
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