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.


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().

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