Hi, thank you for the suggestions, I'll check openCv. Can you explain how
to use morphological filters to clear up the noise in the image? Are
there examples around? Also, could you please explain me better what do you
mean with adaptive background subtraction method?
Thank you for your time :)
I'm not totally clear on the big picture here but it could be you might
save yourself a lot of time and effort doing your blob tracking with
Community Core Vision (CCV) then sending the blob data to Pd through OSC.
After initially doing my blob tracking in Pd only (which did work), I
switched to
morphological filters affect the shape
they mostly work on binary images
the most common are erode, dilate, close and open algorithm
with which you can make a pepper or salt removing filter to remove black
or white isolated pixels
concerning background subtraction, if you use a fixed background
i tried CCV one time but i had some driver and performance issues
moreover, i can't find an easy way to tune the processing chain
pd is more flexible but, i agree, could be harder
--
do it yourself
http://antoine.villeret.free.fr
2013/4/18 John Harrison john.harri...@alum.mit.edu
I'm not
FWIW I had just the opposite experience with CCV. CCV has built-in
background adaptive subtraction, smoothing, highpass filter, gain,
contrast, etc. all tweakable. It also tracks blobs uniquely as the original
poster is wanting, which is why I thought of it for their needs. I used
how is it possible to use several cameras, correct perspective on each,
make a big picture with blending and then tracking on that big picture with
CCV ?
this have been done with Pd and pix_opencv and works great (at least if
you're not using a cheap V4L2 cam with buggy drivers)
--
do it yourself
OK I guess I misunderstood that the original poster was wanting to do all
of that. I know the latest CCV supports multiple cameras for some sort of
big picture so it may actually do what you are asking but I don't know
the details so if you say it doesn't support all of that I'll go with your
concerning the multiple cameras and so on, this was just my need and why
i'm not using CCV
but be sure that i have nothing against CCV, it could be very useful in
lots of context :-)
regarding driver, as i remember, i had issue with IIDC cameras
but this was few years ago
and by cheap i refer to
Hi everyone, this is my first time on the pd-list so I hope I won't do
anything wrong.
I'm writing here to get some help about pd tracking objects (pix_blob..).
I'm using the background subtraction method, to track objects and I need
help to understand how I can track multiple objects with
hi,
the segmentation method (how you extract what is your interest from the
rest of the image) is very critical in video tracking
background subtraction is a basic way to extract blob and it works only in
certain conditions of light (if you want to track something outdoor, you
should use an
On 04/17/2013 09:59 PM, Ska Frenz wrote:
Hi everyone, this is my first time on the pd-list so I hope I won't do
anything wrong.
I'm writing here to get some help about pd tracking objects (pix_blob..).
I'm using the background subtraction method, to track objects and I need
help to understand
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