[Insight-users] ChanVese Segmentation (ScalarSinglePhaseSparse2D)

Saurabh Garg srbh.garg at gmail.com
Sun Jul 29 12:34:50 EDT 2012


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
>
>
>
>
> --
> View this message in context:
> http://itk-insight-users.2283740.n2.nabble.com/ChanVese-Segmentation-ScalarSinglePhaseSparse2D-tp7580648.html
> Sent from the ITK Insight Users mailing list archive at Nabble.com.
> _____________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Kitware offers ITK Training Courses, for more information visit:
> http://www.kitware.com/products/protraining.php
>
> Please keep messages on-topic and check the ITK FAQ at:
> http://www.itk.org/Wiki/ITK_FAQ
>
> Follow this link to subscribe/unsubscribe:
> http://www.itk.org/mailman/listinfo/insight-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.itk.org/pipermail/insight-users/attachments/20120729/0ff3a4fe/attachment.htm>


More information about the Insight-users mailing list