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vtkImageNonMaximumSuppression.h
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vtkImageNonMaximumSuppression.h
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkImageNonMaximumSuppression.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm 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 notice for more information.
=========================================================================*/
/**
* @class vtkImageNonMaximumSuppression
* @brief Performs non-maximum suppression
*
* vtkImageNonMaximumSuppression Sets to zero any pixel that is not a peak.
* If a pixel has a neighbor along the vector that has larger magnitude, the
* smaller pixel is set to zero. The filter takes two inputs: a magnitude
* and a vector. Output is magnitude information and is always in doubles.
* Typically this filter is used with vtkImageGradient and
* vtkImageGradientMagnitude as inputs.
*/
#ifndef vtkImageNonMaximumSuppression_h
#define vtkImageNonMaximumSuppression_h
#define VTK_IMAGE_NON_MAXIMUM_SUPPRESSION_MAGNITUDE_INPUT 0
#define VTK_IMAGE_NON_MAXIMUM_SUPPRESSION_VECTOR_INPUT 1
#include "vtkImagingMorphologicalModule.h" // For export macro
#include "vtkThreadedImageAlgorithm.h"
#include "vtkImageData.h" // makes things a bit easier
class VTKIMAGINGMORPHOLOGICAL_EXPORT vtkImageNonMaximumSuppression : public vtkThreadedImageAlgorithm
{
public:
static vtkImageNonMaximumSuppression *New();
vtkTypeMacro(vtkImageNonMaximumSuppression,vtkThreadedImageAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) override;
//@{
/**
* Set the magnitude and vector inputs.
*/
void SetMagnitudeInputData(vtkImageData *input) {this->SetInputData(0,input);};
void SetVectorInputData(vtkImageData *input) {this->SetInputData(1,input);};
//@}
//@{
/**
* If "HandleBoundariesOn" then boundary pixels are duplicated
* So central differences can get values.
*/
vtkSetMacro(HandleBoundaries, vtkTypeBool);
vtkGetMacro(HandleBoundaries, vtkTypeBool);
vtkBooleanMacro(HandleBoundaries, vtkTypeBool);
//@}
//@{
/**
* Determines how the input is interpreted (set of 2d slices or a 3D volume)
*/
vtkSetClampMacro(Dimensionality,int,2,3);
vtkGetMacro(Dimensionality,int);
//@}
protected:
vtkImageNonMaximumSuppression();
~vtkImageNonMaximumSuppression() override {}
vtkTypeBool HandleBoundaries;
int Dimensionality;
int RequestInformation (vtkInformation *,
vtkInformationVector **,
vtkInformationVector *) override;
int RequestUpdateExtent(vtkInformation*,
vtkInformationVector**,
vtkInformationVector*) override;
void ThreadedRequestData(vtkInformation *request,
vtkInformationVector **inputVector,
vtkInformationVector *outputVector,
vtkImageData ***inData,
vtkImageData **outData,
int extent[6], int threadId) override;
private:
vtkImageNonMaximumSuppression(const vtkImageNonMaximumSuppression&) = delete;
void operator=(const vtkImageNonMaximumSuppression&) = delete;
};
#endif