[Insight-users] label connex components, hull convex, binary image

[Luis Ibanez]

Hi Elhadj,

1) You can compute connected components with
    the filter:

http://www.itk.org/Doxygen/html/classitk_1_1ConnectedComponentImageFilter.html

    this filter will produce an output where the
    elements are labeled with integer numbers.
    (but those numbers are not contiguous)

2) You could relabel the output of (1) by using
     the filter:

http://www.itk.org/Doxygen/html/classitk_1_1RelabelComponentImageFilter.html


3) I'm not aware of a convex hull computation
    in ITK. However, if you don't need the convex
    hull to be exact, you could get a similar result
    by using the filter:

http://www.itk.org/Doxygen/html/classitk_1_1VotingBinaryIterativeHoleFillingImageFilter.html



Regards,


      Luis




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On Wed, Oct 13, 2010 at 6:05 AM, elhadj meljane <elhadj.meljane at gmail.com>wrote:

> Hi all,
> I want to extract the connex components from a binary  image (label each
> component) and compute the convex hull for some components.
> Is there an itk object, slicer module ... that can help to do this ?
> Thanks,
>
>
>
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