[Insight-developers] Curvature Calculation in ITK

[Luis Ibanez]

Hi Sila,

What kind of curvature are you looking for ?

Is it the Gauss curvature of an Iso-surface of intensity ?

Is your input image an image of grayscale values ?

--

You will find methods for computing curvature in the file:

    Insight/Code/Common/itkLevelSetFunction.txx

In:

   - ComputeMinimalCurvature() line 55, and
   - ComputeMeanCurvature() line 160.


Regards,


      Luis


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On Fri, Aug 14, 2009 at 8:21 AM, Sıla Girgin <silagirgin at gmail.com> wrote:

> Hi,
>
> I am trying to calculate curvature value for each pixel in an image.
> I could not find a function in ITK.
> I used RecursiveGaussianImageFilter to find first and second derivatives.
> Then I put them in to this formula
>
> k = (x'y'' - y'x'') / (x'2 + y'2)3/2
>
> but, results are not good..
> Do you have a function to calculate curvature by using ITK functions?
> Or do you have any suggestion?
>
> Thanks
>
> Sila Girgin
>
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