Portions of the 'live-wire' feature would be expensive, namely
the freezing, edge learning, and automatic node generation.  I submitted a
patch not to long ago that implemented the most visible part of the live
wire feature--the interactive edge--and I was told that it was accepted into
the developers version.  I have not checked to see if it really is there,
but I could send the file again if I can find it.

As far as I can tell, the node generation is not that substantial--it is
easily done by hand. The learning portion would be tough, and with the
current interactive algorithm the freezing would also be difficult.

Laramie Leavitt

-----Original Message-----
[mailto:[EMAIL PROTECTED]]On Behalf Of Austin
Sent: Monday, January 14, 2002 2:37 PM
To: Martin Waitz
Subject: Re: [Gimp-developer] intelligent scissors

On Monday, 14 Jan 2002, Martin Waitz wrote:

> anyone working at the iscissor tool at the moment?
> i would like to implement some of the features described in
> http://www.cs.orst.edu/~enm/publications/GMIP_98/seg_scissors.html
> as a work for an university course.

I think I was the last person to substantially modify the iscissors
code.  I read the paper you reference above, and indeed it was quite
helpful.  However, note that their algorithm is substantially more
computationally expensive than what iscissors.c currently does.  This
is deliberate.  Also, the "live wire" feature mentionned in the paper
would be fairly tough to do in gimp (from a UI point of view).

Can you be more specific about what features described in the paper
you wanted to add to iscissors?

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