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/*=========================================================================
Program: Visualization Toolkit
Module: vtkImageGaussianSmooth.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 vtkImageGaussianSmooth - Performs a gaussian convolution.
// .SECTION Description
// vtkImageGaussianSmooth implements a convolution of the input image
// with a gaussian. Supports from one to three dimensional convolutions.
#ifndef vtkImageGaussianSmooth_h
#define vtkImageGaussianSmooth_h
#include "vtkImagingGeneralModule.h" // For export macro
#include "vtkThreadedImageAlgorithm.h"
class VTKIMAGINGGENERAL_EXPORT vtkImageGaussianSmooth : public vtkThreadedImageAlgorithm
{
public:
vtkTypeMacro(vtkImageGaussianSmooth,vtkThreadedImageAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Creates an instance of vtkImageGaussianSmooth with the following
// defaults: Dimensionality 3, StandardDeviations( 2, 2, 2),
// Radius Factors ( 1.5, 1.5, 1.5)
static vtkImageGaussianSmooth *New();
// Description:
// Sets/Gets the Standard deviation of the gaussian in pixel units.
vtkSetVector3Macro(StandardDeviations, double);
void SetStandardDeviation(double std)
{this->SetStandardDeviations(std,std,std);}
void SetStandardDeviations(double a,double b)
{this->SetStandardDeviations(a,b,0.0);}
vtkGetVector3Macro(StandardDeviations, double);
// Description:
// Sets/Gets the Standard deviation of the gaussian in pixel units.
// These methods are provided for compatibility with old scripts
void SetStandardDeviation(double a,double b)
{this->SetStandardDeviations(a,b,0.0);}
void SetStandardDeviation(double a,double b,double c)
{this->SetStandardDeviations(a,b,c);}
// Description:
// Sets/Gets the Radius Factors of the gaussian (no unit).
// The radius factors determine how far out the gaussian kernel will
// go before being clamped to zero.
vtkSetVector3Macro(RadiusFactors, double);
void SetRadiusFactors(double f, double f2) {
this->SetRadiusFactors(f,f2,1.5);}
void SetRadiusFactor(double f) {this->SetRadiusFactors(f, f, f);}
vtkGetVector3Macro(RadiusFactors, double);
// Description:
// Set/Get the dimensionality of this filter. This determines whether
// a one, two, or three dimensional gaussian is performed.
vtkSetMacro(Dimensionality, int);
vtkGetMacro(Dimensionality, int);
protected:
vtkImageGaussianSmooth();
~vtkImageGaussianSmooth();
int Dimensionality;
double StandardDeviations[3];
double RadiusFactors[3];
void ComputeKernel(double *kernel, int min, int max, double std);
virtual int RequestUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *);
void InternalRequestUpdateExtent(int *, int*);
void ExecuteAxis(int axis, vtkImageData *inData, int inExt[6],
vtkImageData *outData, int outExt[6],
int *pcycle, int target, int *pcount, int total,
vtkInformation *inInfo);
void ThreadedRequestData(vtkInformation *request,
vtkInformationVector **inputVector,
vtkInformationVector *outputVector,
vtkImageData ***inData, vtkImageData **outData,
int outExt[6], int id);
private:
vtkImageGaussianSmooth(const vtkImageGaussianSmooth&); // Not implemented.
void operator=(const vtkImageGaussianSmooth&); // Not implemented.
};
#endif
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