[Insight-users] Binary Image segmentation

[Dan Homerick]

I haven't done any work with feature extraction yet, and so won't be able to
lend much, if any, assistance.

I can suggest that, for the benefit of others on the list, you provide more
details about what you've already tried and the problems that you've had. Am
I correct in assuming that the "Feature Extraction" tool(s) that you've
tried includes the
HoughTransform2DLinesImageFilter<http://www.itk.org/Doxygen32/html/classitk_1_1HoughTransform2DLinesImageFilter.html>?
In what way(s) are the results not appreciable?

Cheers,
 - Dan

On 8/2/07, gkaremore at scai.fraunhofer.de <gkaremore at scai.fraunhofer.de>
wrote:
>
> Hello Dan
>
> Thanks for your effort in understanding the problem. I meant by word
> segmenting is not with respect to medical(or other)image processing, my
> application is Document image segmentation. In another words , It would be
> called as multiclass labeling problem. Please see following papers related
> to binary image segmentation.
>
> Bayesian decision feedback for segmentation of binary images
> Kadaba, S.R.; Gelfand, S.B.; Kashyap, R.L. Acoustics, Speech, and Signal
> Processing, 1995. ICASSP-95., 1995 International Conference on
> Volume 4, Issue , 9-12 May 1995 Page(s):2543 - 2546 vol.4
>
> Strzelecki M., Segmentation of Binary Images Using Network of Oscillators,
> 2 Krajowa, Konferencja Komputerowe Systemy Rozpoznawania KOSYR 2001, 28-31
> May 2001
>
> Especially papers from "International Journal of Document Analysis and
> Recognition (IJDAR) - Computer Imaging, Vision, PR and Graphics "
>
> My criterion to cluster is Shape:
>
> I want rectangular,square, and horz and verticle line component to be
> labbled in separation to Text and graphics on the document(Under
> segmentation/clustering/labeling).
>
> currently I am trying with "Feature extraction" section of ITK toolbox.
> Results are not appreciable. So looking for a different approach using ITK
> library.
>
> Thanks in advance.
>
> Sincerely
> Gopal
>
>
> 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 <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
> >> _______________________________________________
> >> Insight-users mailing list
> >> Insight-users at itk.org
> >> http://www.itk.org/mailman/listinfo/insight-users
> >>
> >
>
>
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