ProcessingUtils Class Reference

This class handles all the preprocessing stuff (gradient, curvature, gaussian) More...

#include <ProcessingUtils.h>

List of all members.

Public Member Functions
	ProcessingUtils (vl::ref< vl::Image > volume, float sigma=1.0)
	Initializes the preprocessing utility with the volume file and a sigma value for the gaussian.
	~ProcessingUtils (void)
void	compute ()
	Does the preprocessing.
vl::ref< vl::Image >	getGradient ()
	Returns the gradient.
vl::ref< vl::Image >	getCurvature ()
	Returns the curvature.
vl::ref< vl::Image >	getSmoothedVolume ()
	Returns the smoothed volume.

Private Member Functions
void	computeGradient ()
void	computeSecondDerivativeX ()
void	computeSecondDerivativeY ()
void	computeSecondDerivativeZ ()
void	computeCurvature ()
int	computeGaussianGPU ()
int	computeGradientGPU ()
int	computeCurvatureGPU ()

Private Attributes
vl::ref< vl::Image >	_volume
	Volume image.
vl::ref< vl::Image >	_smoothedVolume
	Smoothed volume after gaussian. If sigma = 0 -> this is the original volume.
vl::ref< vl::Image >	_gradient
	Gradient image.
vl::ref< vl::Image >	_curvature
	Curvature image.
float	_sigma
	Sigma for the gaussian.

---

Detailed Description

This class handles all the preprocessing stuff (gradient, curvature, gaussian)

---

Constructor & Destructor Documentation

ProcessingUtils::ProcessingUtils	(	vl::ref< vl::Image >	volume,
		float	sigma = 1.0
	)

Initializes the preprocessing utility with the volume file and a sigma value for the gaussian.

Constructor

Parameters:

volume
sigma

ProcessingUtils::~ProcessingUtils

(

void

)

Deconstructor

---

Member Function Documentation

void ProcessingUtils::compute

(

)

Does the preprocessing.

void ProcessingUtils::computeCurvature ( )

private

  Computation of the curvature according to

Computing the Differential Characteristics of Isointensity Surfaces by Jean-Philippe Thirion and Alexis Gourdon Computer Vision and Image Unterstanding Vol. 61, No. 2, March, pp. 190-202, 1995

int ProcessingUtils::computeCurvatureGPU ( )

private

  Computes the curvature with CUDA. An error might be returned if the GPU runs out of memory.

Returns:

-1 if an error occured

int ProcessingUtils::computeGaussianGPU ( )

private

  Convolves the volume with a gaussian using cuda. An error might be returned if the GPU runs out of memory.

Returns:

-1 if an error occured

void ProcessingUtils::computeGradient ( )

private

int ProcessingUtils::computeGradientGPU ( )

private

  Computes the gradient with CUDA. An error might be returned if the GPU runs out of memory

Returns:

-1 if an error occured

void ProcessingUtils::computeSecondDerivativeX ( )

private

void ProcessingUtils::computeSecondDerivativeY ( )

private

void ProcessingUtils::computeSecondDerivativeZ ( )

private

vl::ref<vl::Image> ProcessingUtils::getCurvature ( )

inline

Returns the curvature.

vl::ref<vl::Image> ProcessingUtils::getGradient ( )

inline

Returns the gradient.

vl::ref<vl::Image> ProcessingUtils::getSmoothedVolume ( )

inline

Returns the smoothed volume.

---

Member Data Documentation

vl::ref<vl::Image> ProcessingUtils::_curvature

private

Curvature image.

vl::ref<vl::Image> ProcessingUtils::_gradient

private

Gradient image.

float ProcessingUtils::_sigma

private

Sigma for the gaussian.

vl::ref<vl::Image> ProcessingUtils::_smoothedVolume

private

Smoothed volume after gaussian. If sigma = 0 -> this is the original volume.

vl::ref<vl::Image> ProcessingUtils::_volume

private

Volume image.

---

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

• ProcessingUtils.h
• ProcessingUtils.cpp