[Elphel-support] Exposure priority
Oleg
support-list at support.elphel.com
Tue Jan 3 13:47:31 PST 2012
Dear Dimitrios,
Is there a way to set auto-exposure priority to exposure so that when
> the camera tries to find a solution for a given lighting condition, it
> tries first to adjust gain and then exposure? I believe the default is
> 'gain priority' i.e. adjust exposure until lighting is within required
> limits while keeping gain fixed.
>
We have only exposure adjusted (within autoexposure/autowb window) with
gains set manually only (fixed green and auto-adjusting red & blue for
white balance) - 'gain priority' like you called it.
So the solution for now is to try to set gains manually so the darkest
scene is not blurred. Different default gains for sunny/cloudy conditions
might work. What do you think?
The effective range for adjusting gains is not wide - images get noisier
above 8. You might have already played with it.
Best regards,
Oleg Dzhimiev
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