I compiled pdp_openCV not that long ago on ubuntu 10.4. I don't remember how I did it but I think that's because it was pretty straightforward and went without hitch. It all worked pretty well as I recall. No big surprises. The help patches got me started.

But do you need that for a laser tracker? Seems like pix_subtract and pix_blob would do the job... Max Neupert has some nice patches using this technique IIRC:
http://web.uni-weimar.de/medien/wiki/Bewegungsmelder

You could also use pix_blob's color weight inlet effectively since you know you are looking for red.

-John

On Thu, Oct 28, 2010 at 2:22 PM, Pagano, Patrick <pat@digitalworlds.ufl.edu> wrote:
I would like to make a laser tracker that tracks the points from a red laser beam.
I would like to see if I can use pdp_ openCV to track the laser and when I hover the laser over some video long enough it acts as a click, is this possible?

Thanks for the cool link!



-----Original Message-----
From: ydegoyon@gmail.com [mailto:ydegoyon@gmail.com]
Sent: Thursday, October 28, 2010 2:33 PM
To: Pagano, Patrick; PD List
Subject: Re: [PD] opencv


there are already some work made with pd_opencv

http://vimeo.com/8195788

i dunno what more explanations you need,
just be curious and inventive

ciao,
sevy

Pagano, Patrick wrote:
>
> So far I have not seen anything besides help patches that explain it's
> use. Has anyone at all made a working patch, say a laser tracker?
> Anything using pix_ or pdp_ openCV stuff?
>
> *From:* pd-list-bounces@iem.at [mailto:pd-list-bounces@iem.at] *On
> Behalf Of *Jose Luis Santorcuato
> *Sent:* Thursday, October 28, 2010 1:09 PM
> *To:* Claude Heiland-Allen
> *Cc:* pd-list@iem.at
> *Subject:* Re: [PD] opencv
>
> Hi, Search in torrents Learning Open CV....Oreilly media... the Pd OCV
> reserch is based in this book...
>
> Best regards
>
> José
>
> 2010/10/28 Claude Heiland-Allen <claudiusmaximus@goto10.org
> <mailto:claudiusmaximus@goto10.org>>
>
> On 28/10/10 17:39, Philip Cunningham wrote:
>
> Hello list,
>
> I wonder if there are any tutorials available on how to use OpenCV
> with Pd? I'm trying to download necessary components using the
> following site:
> http://www.hangar.org/wikis/lab/doku.php?id=start:puredata_opencv but
> having very little luck. Operating system is Ubuntu 10.4.
>
> You could try the Puredyne PPA for pd-pdp-opencv (available right
> nownow) and pd-pix-opencv packages (available soon..) for Lucid:
>
> https://launchpad.net/~puredyne-team/+archive/ppa
> <https://launchpad.net/%7Epuredyne-team/+archive/ppa>
>
>
> Claude
>
>
>
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>
> --
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> http://www.myspace.com/santorcuato
> http://comunicacionnativa.blogspot.com/
>
>
>
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