[PD-dev] webcam color balance from gem

Ricardo Fabbri rfabbri at gmail.com
Thu Nov 17 09:25:54 CET 2011


thanks.

ps: you referred to [1]  but I see no link.

best,

On Thursday, November 17, 2011, IOhannes m zmoelnig <zmoelnig at iem.at> wrote:
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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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-- 

Ricardo Fabbri
--
Linux registered user #175401
www.lems.brown.edu/~rfabbri
labmacambira.sf.net
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