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Remote Cam Lighting Tip

Posted: Thu Aug 28, 2014 11:42 pm
by JuliaDee
I've long struggled with "image bloom" when using IP webcams for remote monitoring of my printers, especially with light-colored or fluorescent filament. The print would seemingly overload the camera's exposure control and be all washed out and difficult to view. I tried turning off the IR sensing, putting filters over the lens, and putting filters over the enclosure lighting but nothing helped - I still had to turn the brightness and contrast down to 1 or 2 and it was still a lousy image.

FInally I realized what the problem was, and the solution was obvious. The camera's exposure control averages the light over the entire image area, which inevitably includes a lot of background - the interior of the (black) enclosure and the dark maroon Afinia frame. I covered everything in the image frame with white paper, and voila! perfect exposure with plenty of adjustment range. Maybe someday I'll tear the setup down and spray everything with white paint.

julia

Re: Remote Cam Lighting Tip

Posted: Fri Aug 29, 2014 1:51 am
by KCSteve
See if you can select 'center weighting' for the exposure mode. That would be less work. It might also be called 'spot'.

Re: Remote Cam Lighting Tip

Posted: Fri Aug 29, 2014 1:53 am
by JuliaDee
Such options don't exist in low-cost IP security cameras, but thanks :)

Re: Remote Cam Lighting Tip

Posted: Fri Aug 29, 2014 11:40 pm
by Bindw
yet another useful tip, Thanks Julia.