[Insight-users] ChanVese Segmentation (ScalarSinglePhaseSparse2D)

[Saurabh Garg]

Hi Grego,

I am not familiar with itk implementation of Chan and Vese segmentation
method but for the Point 3 you can use Mask Negated filter.

Below are the details:
http://www.itk.org/Doxygen/html/classitk_1_1MaskNegatedImageFilter.html

HTH,
Saurabh

On Sun, Jul 29, 2012 at 1:20 AM, Grego <gregoris.liasis at st.ouc.ac.cy> wrote:

> Dear all,
>
> I have some questions on ITK implementation Chan and Vese segmentation
> method
>
> 1. If I have undestood correct the initial level set is a circle created
> using the seed points and the distance. If I give multible seed points and
> distances that means it will create multible initial circles and run all of
> them during the iterations? Is there any other way to initialize?
>
> 2. Can somewhere change the initialization step (dt in the original paper).
>
> 3. The output image it is a mask with to values 0 and 255. Can I convert
> that image to exactly the opposite (zeros to become 255 and 255 to become
> zeros) becouse the objects that I am trying to segment are presented with
> black and I need them to be white so can proceed with my pricessing
> procedures.
>
> 4. I would realy also need help on how to change the code so I can see the
> active contour evolution.
>
> Thank you in advance.
>
> Grego
>
>
>
>
> --
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