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/*=========================================================================
Program: Visualization Toolkit
Module: vtkImageGradientMagnitude.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.
=========================================================================*/
// .NAME vtkImageGradientMagnitude - Computes magnitude of the gradient.
// .SECTION Description
// vtkImageGradientMagnitude computes the gradient magnitude of an image.
// Setting the dimensionality determines whether the gradient is computed on
// 2D images, or 3D volumes. The default is two dimensional XY images.
// .SECTION See Also
// vtkImageGradient vtkImageMagnitude
#ifndef __vtkImageGradientMagnitude_h
#define __vtkImageGradientMagnitude_h
#include "vtkImagingGeneralModule.h" // For export macro
#include "vtkThreadedImageAlgorithm.h"
class VTKIMAGINGGENERAL_EXPORT vtkImageGradientMagnitude : public vtkThreadedImageAlgorithm
{
public:
static vtkImageGradientMagnitude *New();
vtkTypeMacro(vtkImageGradientMagnitude,vtkThreadedImageAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// If "HandleBoundariesOn" then boundary pixels are duplicated
// So central differences can get values.
vtkSetMacro(HandleBoundaries, int);
vtkGetMacro(HandleBoundaries, int);
vtkBooleanMacro(HandleBoundaries, int);
// Description:
// Determines how the input is interpreted (set of 2d slices ...)
vtkSetClampMacro(Dimensionality,int,2,3);
vtkGetMacro(Dimensionality,int);
protected:
vtkImageGradientMagnitude();
~vtkImageGradientMagnitude() {};
int HandleBoundaries;
int Dimensionality;
virtual int RequestInformation (vtkInformation*,
vtkInformationVector**,
vtkInformationVector*);
virtual int RequestUpdateExtent(vtkInformation*,
vtkInformationVector**,
vtkInformationVector*);
void ThreadedExecute (vtkImageData *inData, vtkImageData *outData,
int extent[6], int id);
private:
vtkImageGradientMagnitude(const vtkImageGradientMagnitude&); // Not implemented.
void operator=(const vtkImageGradientMagnitude&); // Not implemented.
};
#endif
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