[PD-dev] webcam color balance from gem

[IOhannes m zmoelnig]

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On 2011-11-17 02:07, Ricardo Fabbri wrote:
> Hi,
> 
> would there be a straightforward way to adjust the hardware color
> balance of a webcam through GEM? Do you have experience in
> getting/setting those attributes with the PS3 eye webcam which has
> been used in a lot of Pd projects? perhaps installing a new driver
> with more controls?
> 
> I am under Ubuntu 11.10 64bit with a 3.0.0-12 kernel.
> 
> I am also trying to develop/improve v4l2 handling in gem and pdp, but
> I'd like to get some of the community input and wisdom first.

you can adjust each and every ctl available via the v4l2 driver from
within Gem.
see the [pd properties] subpatch in the help for pix_video.

the ps3eye gives me 10 controls with stock drivers (none of them dealing
with color correction, if they are labelled correctly).
i haven't tried the patch at [1] for a long time, but i remember having
good results "back then" (i mainly needed it the patch for being able to
adjust the imagesize/framerate, but it seems that it also allows some
color correction)

fgmasdr
IOhannes
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