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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkImageLaplacian.h,v $
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 vtkImageLaplacian - Computes divergence of gradient.
// .SECTION Description
// vtkimageLaplacian computes the Laplacian (like a second derivative)
// of a scalar image. The operation is the same as taking the
// divergence after a gradient. Boundaries are handled, so the input
// is the same as the output.
// Dimensionality determines how the input regions are interpreted.
// (images, or volumes). The Dimensionality defaults to two.
#ifndef __vtkimageLaplacian_h
#define __vtkimageLaplacian_h
#include "vtkThreadedImageAlgorithm.h"
class VTK_IMAGING_EXPORT vtkImageLaplacian : public vtkThreadedImageAlgorithm
{
public:
static vtkImageLaplacian *New();
vtkTypeRevisionMacro(vtkImageLaplacian,vtkThreadedImageAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Determines how the input is interpreted (set of 2d slices ...)
vtkSetClampMacro(Dimensionality,int,2,3);
vtkGetMacro(Dimensionality,int);
protected:
vtkImageLaplacian();
~vtkImageLaplacian() {};
int Dimensionality;
virtual int RequestUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *);
void ThreadedRequestData(vtkInformation *request,
vtkInformationVector **inputVector,
vtkInformationVector *outputVector,
vtkImageData ***inData, vtkImageData **outData,
int outExt[6], int id);
private:
vtkImageLaplacian(const vtkImageLaplacian&); // Not implemented.
void operator=(const vtkImageLaplacian&); // Not implemented.
};
#endif
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