vtkImageSliceGradient Class Reference

#include <vtkImageSliceGradient.h>

Inheritance diagram for vtkImageSliceGradient:

[legend]Collaboration diagram for vtkImageSliceGradient:

[legend]List of all members.

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Detailed Description

Simple filter for calculating the slice gradient.

This is a simple image-image filter that calculates the MRI slice gradient across a phase unwrapped image (the output of vtkImagePRELUDE for instance). The number of slices per volume for a multi-echo sequence may be specified. Optionally, the echo times may be supplied as well as the system precession frequency so that the final output units are in parts per million per units of spacing. If the echo times are not supplied then the final output will be in radians per units of spacing. If the precession frequency is not supplied, but the echo times are supplied then the final output will be Hz (assuming echo times in seconds) per units of spacing. Finally, the spacing may scaled using SetSpacingScaleFactor. WARNING: It is assumed that user understands the units of the parameters being supplied and uses this class accordingly.

See also:

vtkSimpleImageToImageFilter

Definition at line 54 of file vtkImageSliceGradient.h.

Public Member Functions
	vtkTypeRevisionMacro (vtkImageSliceGradient, vtkSimpleImageToImageFilter)
void	SetEchoTimes (double *time, int num)
double *	GetEchoTimes (int &num)
virtual void	SetSpacingScaleFactor (double)
virtual double	GetSpacingScaleFactor ()
virtual void	SetPrecessionFrequency (double)
virtual double	GetPrecessionFrequency ()
Static Public Member Functions
static vtkImageSliceGradient *	New ()
Protected Member Functions
	vtkImageSliceGradient ()
	~vtkImageSliceGradient ()
virtual void	SimpleExecute (vtkImageData *input, vtkImageData *output)

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Constructor & Destructor Documentation

vtkImageSliceGradient::vtkImageSliceGradient

(

)

[protected]

vtkImageSliceGradient::~vtkImageSliceGradient

(

)

[protected]

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Member Function Documentation

static vtkImageSliceGradient* vtkImageSliceGradient::New

(

)

[static]

Reimplemented from vtkAlgorithm.

vtkImageSliceGradient::vtkTypeRevisionMacro	(	vtkImageSliceGradient	,
		vtkSimpleImageToImageFilter
	)

void vtkImageSliceGradient::SetEchoTimes	(	double *	time,
		int	num
	)

Set the echo times.

double* vtkImageSliceGradient::GetEchoTimes

(

int &

num

)

Get the echo times.

virtual void vtkImageSliceGradient::SetSpacingScaleFactor

(

double

)

[virtual]

Set/Get the spacing scale factor (default is 1.0).

virtual double vtkImageSliceGradient::GetSpacingScaleFactor

(

)

[virtual]

Set/Get the spacing scale factor (default is 1.0).

virtual void vtkImageSliceGradient::SetPrecessionFrequency

(

double

)

[virtual]

Set/Get the precession frequency (default is 0).

virtual double vtkImageSliceGradient::GetPrecessionFrequency

(

)

[virtual]

Set/Get the precession frequency (default is 0).

virtual void vtkImageSliceGradient::SimpleExecute	(	vtkImageData *	input,
		vtkImageData *	output
	)			[protected, virtual]

Implements vtkSimpleImageToImageFilter.

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The documentation for this class was generated from the following file:

• dox/Imaging/vtkImageSliceGradient.h

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