[Insight-users] Binary Image segmentation

[gkaremore at scai.fraunhofer.de]

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
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>