[Insight-users] Binary Image segmentation

[Luis Ibanez]

Hi Gopal,

Dan is quite right here, but just to expand a bit in his answer:

Could you post somewhere an example of the images that you are
processing, and betwee explain what is the outcome that you are
looking for ?

Note that for connected components you could use the filter:
http://www.itk.org/Insight/Doxygen/html/classitk_1_1ConnectedComponentImageFilter.html

very related is the RelabelComponentImageFilter:
http://www.itk.org/Insight/Doxygen/html/classitk_1_1RelabelComponentImageFilter.html


    Regards,


       Luis


----------------------
Dan Homerick wrote:
> Hi Gopal,
> 
> I'm not sure if I understand what you mean by segmenting a binary image. 
> "Segmentation" is typically reducing a grayscale or color image so that 
> only a few values are used, done in such a way that each color in the 
> resulting image has some semantic meaning. If you're starting with a 
> binary image, there's not much segmentation that can be done.
> 
> It sounds like what you really want is to cluster (unconnected) 
> components of your binary image into logical objects. By what criteria 
> do you want to cluster them (spatial proximity, similarity of size, 
> shape, other)? I don't think there will be a simple filter to accomplish 
> that, but if you can provide more details of what you intend to do, the 
> mailing-list may be able to provide some guidance.
> 
> Cheers,
>  - Dan
> 
> On 8/2/07, *gkaremore at scai.fraunhofer.de 
> <mailto:gkaremore at scai.fraunhofer.de>* < gkaremore at scai.fraunhofer.de 
> <mailto:gkaremore at scai.fraunhofer.de>> wrote:
> 
>     Dear All
> 
>     Does ITK help in segmenting binary images. In another words ITK
>     segmentation library provides function to segment only gray scale and
>     color image. Will ITK helpfull in segmenting binary images in  to
>     different clusters. (Tried Binary threshold filter, connected component
>     algorithms).
> 
>     Is there any other method by which we can segment binary image in ITK.
> 
>     Any comments would be appreciable.
> 
>     Sincerely
>     Gopal
> 
>     Research Scholar
>     Fraunhofer Institute
>     Germany
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