TensorOps.H File Reference

#include "Image/Image.H"
#include "Image/ImageSet.H"
#include "Image/FilterOps.H"
#include "Util/Promotions.H"
#include <vector>

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Classes
struct	EigenSpace
struct	TensorField
	Here we represent tensors as an image set with 4 images indexed as: More...
Functions
template<class T >
TensorField	getTensor (const Image< T > &img, int kernelSize=5)
	Get the tensor of an image by measuring the gradient.
Image< float >	getTensorMag (const TensorField &tf)
	Get the tensor magnitude value.
TensorField	getTensor (const EigenSpace &eigen)
	Get the tensor of an image from eigenvectors and eigenvalues.
EigenSpace	getTensorEigen (const TensorField &tf)
	Get the eigenvectors and values from a tensor.
void	nonMaxSurp (TensorField &tf, float radius=1.5)
	Perform non maximal surpression.

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Detailed Description

Mathematical Tensor operations

Definition in file TensorOps.H.

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Function Documentation

TensorField getTensor

(

const EigenSpace &

eigen

)

Get the tensor of an image from eigenvectors and eigenvalues.

Definition at line 247 of file TensorOps.C.

References Image< T >::getDims(), Image< T >::getVal(), NO_INIT, and Image< T >::size().

template<class T >

TensorField getTensor	(	const Image< T > &	img,
		int	kernelSize = 5
	)			[inline]

Get the tensor of an image by measuring the gradient.

Definition at line 70 of file TensorOps.C.

References ASSERT, Image< T >::begin(), Image< T >::getDims(), Image< T >::getHeight(), Image< T >::getWidth(), and NO_INIT.

EigenSpace getTensorEigen

(

const TensorField &

tf

)

Get the eigenvectors and values from a tensor.

Definition at line 273 of file TensorOps.C.

References Image< T >::getDims(), Image< T >::getVal(), NO_INIT, Image< T >::setVal(), Image< T >::size(), sqrt(), and trace().

Referenced by nonMaxSurp().

Image<float> getTensorMag

(

const TensorField &

tf

)

Get the tensor magnitude value.

Definition at line 221 of file TensorOps.C.

References Image< T >::begin(), Image< T >::end(), Image< T >::getDims(), NO_INIT, and sqrt().

void nonMaxSurp	(	TensorField &	tf,
		float	radius = 1.5
	)

Perform non maximal surpression.

Definition at line 310 of file TensorOps.C.

References Image< T >::coordsOk(), Image< T >::getHeight(), getTensorEigen(), Image< T >::getVal(), and Image< T >::getWidth().