[Insight-users] Structure Tensor in ITK

[Karthik Krishnan]

No we don't have such a filter. But we do have the GradientImageFilter (or
the GradientRecursiveGaussianImageFilter).

You can iterate over the output pixels (covariant vectors) and take the
outer product of each voxel with itself to construct a
itk::SymmetricSecondRankTensor. You may want to write an operator class for
this (see the several itk*Operator's) available in ITK.

Perhaps you could contribute the resulting filter at the Insight-journal

--
karthik

On Fri, Jun 4, 2010 at 5:48 PM, Sergio Vera <sergio.vera at alma3d.com> wrote:

> Hello
>
> I'm in need of calculating the structure tensor (also called second moment
> matrix) of an image, and it seems that there is not a filter to compute it
> in ITK.
> I've seen the class itk::TensorRelativeAnisotropyImageFilter and I'm not
> sure if it may be related to the structure tensor?
> --
> Sergio Vera
>
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