contrast change triggers motion detection

bloort

n3wb
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Jan 16, 2018
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With a cheap USB camera, the motion detection works perfectly, except at dusk and dawn when the sunlight fades in or out and the camera adjusts it's exposure (fstop?) which suddently brightens the image, and in turn triggers a motion detection event.

I have tried setting the motion threshold to 2 seconds to no avail. Lowered the sensitivity a bit. And enabled or disable the luminence option I was wondering if there was a way to work around this problem without having to lock the camera exposure settings.
 
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