[PD] opencv motion tracker external HELP!

Tim Boykett tim at timesup.org
Tue May 29 17:45:08 CEST 2007

Hi Alain,

wouldn't it be a lot easier to take the system that you already have and
use OSC or FIDO to send the values (that you were printing) to PD
for further processing?

I am greatly in favour of using different systems for different jobs  
and letting
a protocol like OSC or fido (netsend) connect them together.

I could easily help you with that problem, if the code is running  



On 27/05/2007, at 10:35 PM, <nosehair911 at bellsouth.net>  
<nosehair911 at bellsouth.net> wrote:

> For the last 2 weeks I have been trying to write a motion tracking  
> external using the blob motion
> tracker in opencv.  I had success with writing a program that  
> recieves a path to an avi and motion
> tracks the blobs and prints their position.  Now I am writing the  
> set of Pd externals using the same
> code with very little success. I need someone that knows what they  
> are doing to look at my Pd code
> and show me what I am doing wrong.  I have read and followed  
> IOhannes guide on external writing.
> Also, I have looked at the zexy and pdp sorce code in order to  
> learn but still I am not getting it to work.
> The externals are based on the already working code I was able to  
> frankenstein together.  I am
> calling it FTIR_Tools.  It consist of the following (if I ever get  
> them to work!):
> 1. FTIR_Cam: detects webcam and sends out frames to outlet.
> 2. FTIR_VPlayer: reads quicktimes from path and sends out frames to  
> outlet.
> 3. FTIR_Tracker: tracks blobs, sends out "matrix blob# position" to  
> outlet2 and frames to outlet 1.
> you can also turn on and off visuals for center point and bounding  
> box.
> 4. FTIR_Window: displays frames in an X11 window.
> Please look at my code and show me how to fix it. I am getting  
> nowhere.  In the cvBloblib.zip is the
> program I put together called Tracker and the code called  
> Tracker.cpp.  If you want to see how it
> works drag it to terminal and follow it with a path to an .avi. You  
> must have opencv and fink installed.
> If you have ploblems installing opencv post and I will be glad to  
> help.
> Thanks,
> Alain
> <FTIR_Tools(src).zip>
> <cvBloblib.zip>
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