Re: [SLUG] Red Eye removal - automatic script in Gimp ???

[Sonam Chauhan <sonamc@nospam.ce.com.au>]

The application is for the camera to pan and follow a laser pointer about 
in a video-conferening type situation.  The PC already has the processing 
ability so it would be good to exploit it. The camera could be moved by a 
motor at the base. 

Rodos, your idea is a good one too. Extending it: the camera could trace figures 
(e.g. red marker writing on a whiteboard) and then do character recognition.
Following the laser pointer across the board would be a good beginning. 
GIMP may or may not be too slow for video - the major problem 
is lack of knowledge about GIMP internals and to 'expose' them.

I did some usenet posts on sci.image.processing which seem to suggest that 
image thresholding will work. I'm new to Image Processing myself. 
This is what I am looking at: 
 Color Segmentation and Edge Detection software from Rutgers Uni. 
 (their Java package)
  http://www.caip.rutgers.edu/riul/research/slides.html 
 Simple C routine to find a laser spot (need to pulse laser though):
  http://www.swrtec.de/swrtec/robot2/findlaser.html

Regards,
Sonam

> 
> On Sat, 24 Jun 2000, Sonam Chauhan wrote:
> 
> > I'm interested in using the GIMP for project of mine that is pretty similar:
> > Tracking a Laser pointer Dot with a webcam-type camera.
> 
> Now thats a good idea, whats your application? I wonder if you could also
> use it to track a marker with a solid coloured ball on the end. Make your
> whiteboard into a large input tablet. You could put the camera on a 45deg
> angle to the board, or even one either side to cater for left and right
> handed people.
> > If you are going to use Script-Fu and the GIMP I'd love to join in.
> 
> If you are going to do it real time as opposed to static images then I
> doubt using GIMP would be efficient.
> 
> So many projects and ideas, so little time.
> 
> Rodos
> 
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Sonam Chauhan
Electronic Commerce
Corporate Express Australia Ltd.
Phone: +61-2-9335-0725 Fax: +61-2-9335-0753
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