CGAL users discussion list

Thanks for your reply. You've  given me an idea to achieve the  
transformation. Actually I've implemented a background method to  
segment an input image into a binary image with background and  
foreground zones. With a method to obtain the line segments which you  
are talking about, like Hough transform, I will collect them to for  
the polygon desired by means of the procedure you've described.

Cheers!
Luis

Quoting Ben Supnik 
<>:

> Hi,
>
> If you have a set of line segments you could insert them all into an
> arrangement_2, then analyze the arrangement topologically to detect
> closed regions.  (Or use the arrangement to build a "general polygon
> set" and let the polygon set code find the polygons for you with some
> hints.)
>
> cheers
> ben
>
>
>
>
>  wrote:
> > Hi! I'm a new user of the CGAL Library. I'm actually reading different
> > sections of the Reference Manual and I've a doubt I'd like to check in
> > this discuss list.
> >
> > I want to obtain a polygon from a binary image, resulting from a
> > segmentation process, such that the foreground of this image establishes
> > the boundaries of the polygon. Are there any way implemented into the
> > library to achieve this transformation ? Otherwise ... Could you advise
> > me a procedure to achieve it?
> >
> > Thanks in advance, and sorry for my bad english :P.
>
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