TensorOps.C File Reference

#include "Image/TensorOps.H"
#include "Image/Image.H"
#include "Image/Pixels.H"
#include "Image/Range.H"
#include "Image/MatrixOps.H"
#include "Util/Assert.H"
#include "Util/MathFunctions.H"
#include "Util/safecopy.H"
#include "rutz/trace.h"
#include "GUI/DebugWin.H"
#include <algorithm>
#include <cmath>
#include <climits>
#include <cfloat>
#include <numeric>
#include "inst/Image/TensorOps.I"

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Functions
template<class T >
TensorField	getTensor (const Image< T > &img, int kernelSize)
	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)
	Perform non maximal surpression.

---

Detailed Description

Mathematical Tensor operations

Definition in file TensorOps.C.

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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
	)			[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
	)

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().