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85 lines
3.1 KiB
C
85 lines
3.1 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkImageSeparableConvolution.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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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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/**
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* @class vtkImageSeparableConvolution
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* @brief 3 1D convolutions on an image
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*
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* vtkImageSeparableConvolution performs a convolution along the X, Y,
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* and Z axes of an image, based on the three different 1D convolution
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* kernels. The kernels must be of odd size, and are considered to be
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* centered at (int)((kernelsize - 1) / 2.0 ). If a kernel is nullptr,
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* that dimension is skipped. This filter is designed to efficiently
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* convolve separable filters that can be decomposed into 1 or more 1D
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* convolutions. It also handles arbitrarily large kernel sizes, and
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* uses edge replication to handle boundaries.
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*/
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#ifndef vtkImageSeparableConvolution_h
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#define vtkImageSeparableConvolution_h
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#include "vtkImageDecomposeFilter.h"
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#include "vtkImagingGeneralModule.h" // For export macro
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class vtkFloatArray;
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class VTKIMAGINGGENERAL_EXPORT vtkImageSeparableConvolution : public vtkImageDecomposeFilter
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{
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public:
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static vtkImageSeparableConvolution* New();
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vtkTypeMacro(vtkImageSeparableConvolution, vtkImageDecomposeFilter);
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// Set the X convolution kernel, a null value indicates no convolution to
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// be done. The kernel must be of odd length
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virtual void SetXKernel(vtkFloatArray*);
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vtkGetObjectMacro(XKernel, vtkFloatArray);
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// Set the Y convolution kernel, a null value indicates no convolution to
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// be done The kernel must be of odd length
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virtual void SetYKernel(vtkFloatArray*);
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vtkGetObjectMacro(YKernel, vtkFloatArray);
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// Set the Z convolution kernel, a null value indicates no convolution to
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// be done The kernel must be of odd length
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virtual void SetZKernel(vtkFloatArray*);
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vtkGetObjectMacro(ZKernel, vtkFloatArray);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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/**
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* Overload standard modified time function. If kernel arrays are modified,
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* then this object is modified as well.
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*/
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vtkMTimeType GetMTime() override;
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protected:
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vtkImageSeparableConvolution();
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~vtkImageSeparableConvolution() override;
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vtkFloatArray* XKernel;
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vtkFloatArray* YKernel;
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vtkFloatArray* ZKernel;
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int IterativeRequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
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int IterativeRequestInformation(vtkInformation* in, vtkInformation* out) override;
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int IterativeRequestUpdateExtent(vtkInformation* in, vtkInformation* out) override;
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private:
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vtkImageSeparableConvolution(const vtkImageSeparableConvolution&) = delete;
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void operator=(const vtkImageSeparableConvolution&) = delete;
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};
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#endif
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