[PD] Tracking color with GEM+Pdp

ydegoyon at gmail.com ydegoyon at gmail.com
Mon Jun 21 19:02:42 CEST 2010


have a look at the color filter from pix_opencv/pdp_opencv :


Olivier Baudu wrote:
> Oups...
> I forgot to say it, but, of course I use [pix_blob] at the end of my 
> GEM chain...
> 2010/6/21 Olivier Baudu <lamouraupeuple at gmail.com 
> <mailto:lamouraupeuple at gmail.com>>
>     Hi,
>     I would like to track different colors at the same time with my
>     web cam so I've try different way.
>     I begun in GEM with [pix_movement] and/or [pix_alpha] and/or
>     [pix_background]. It was quite good until I wanted only one tracking.
>     With two, it begun more complicate to configure [pix_alpha] in
>     RGBA to dissociate the spots.
>     So, I've tried [pdp_ctrack] which is very powerful but in some
>     situations it would be better to process only with moving pixel.
>     I thought [pix_2pdp] would be the solution to use [pix_movement]
>     before [pdp_ctrack] but it seem not to work with [pix_video] in
>     RGBA colorspace, and in YUV I loose the color information after
>     the [pix_movement] process...
>     (By the way, I can't have simultaneously my webcam in GEM and in
>     Pdp with [pix_2pdp], but, maybe, it's normal)
>     What can I do ?
>     Is there a [pix_movement] for Pdp I didn't find yet ?
>     Is there a way to chose precisely the color to configure
>     [pix_alpha] ? (maybe by converting the colorspace  with
>     [pix_rgb2hsv] but what to do after ?).
>     Of course, if you have a solution for tracking color without
>     answering my questions, I'm still interested. :-p
>     Thanks.
>     01ivier
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