Mike McMullin wrote:
> On Wed, 2007-09-19 at 09:14 -0300, Rejaine Monteiro wrote:
>> Hi list,
>>
>> I'm testing 2 different webcam models: a generic and cheap 1.3MP
>> webcam and a Microsoft VX-1000 webcam.
>>
>> This 2 cams are properly recognized e working on Suse 10.2 - kernel
>> 2.6.18.8-0.5-default ) by lsusb:
>>
>> Generic Webcam: ID 0c45:613c Microdia (using uvcvideo module)
>> Microsft VX-1000: ID 045e:00f7 Microsoft Corp (using gspca module)
>>
>> Both webcams are working fine, but both models (using different modules
>> drivers) present excessively yellowish or greenish images or
>> saturated colors.
>>
>> With gspca, I tried to make some adjustments with autoexpo=0/1,
>> usbgrabber=0/1, RBG=on/off ...
>> Nothing working here... Adjustments of colors seem not make any
>> satisfactory result.
>> Same with generic cam with uvcvideo module ...
>>
>> Any tip ?
>
>
> Probably off the wall, but the type of light source used to heavily
> influence the colour balance of 35mm cameras.
>
Not off the wall at all, I think you hit the nail on the head. The
light source will make a huge difference (remember sophomore
"Electricity & Optics" courses?) A webCAM is a CAMera first so make sure
you are feeding it the best lighting possible. (i.e. put a post lamp
'behind' the webcam so it shines from behind the webcam directly on you
(of course eliminate the shadow) and check the results.
--
David C. Rankin, J.D., P.E.
Rankin Law Firm, PLLC
510 Ochiltree Street
Nacogdoches, Texas 75961
(936) 715-9333
(936) 715-9339 fax
www.rankinlawfirm.com
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