----- Original Message -----
From: "Chris Jenks" <chris@...>
To: "Motion discussion list" <motion-user@...>
Sent: Wednesday, February 07, 2007 5:29 PM
Subject: Re: [Motion-user] Brightness & Round Robin
> On Wed, 7 Feb 2007, Dan wrote:
>>> ----- Original Message -----
>>> From: Juliano Kaus Varela
>>> Subject: [Motion-user] Brightness & Round Robin
>>> I am using a BT878 card with 4 inputs and only one chip. I am using 4
>>> cameras of different manufacturers and in different environments. Also
>>> I am using the Round Robin feature, sure. The problem is that when I
>>> adjust to the brightness in each Thread Conf the other inputs are
>>> affected, is not independent. how to solve?
>> I think the only way to solve this is to try to equilibrate the cams
>> level through hardware (variable resistors for example). I am in the
>> same situation here...
>> Best regards,
> Dear Dan,
> Does the brightness setting control something on the capture card
> itself, or is it used in software to modify the captured image? I had
> assumed it was the latter, which would make lack of channel selectivity a
> bug. I haven't used the brightness setting much, but the one time I did it
> made the image yellow, even when set at 128 (the same brightness as when
> disabled) on a single chip bt878. Autobrightness caused spontaneous wild
> fluctuations in brightness on the same webcam.
Unfortunately I think it is in sofware...