Need help with eliminating trigger when camera switches for night to day

[JimS]

Looking for some help with this and have read up on it some... For a camera on my drive I have only the area of the drive as a detection zone. When the camera shifts it goes from b/w to color or vice versa. For the trigger I am looking at it triggers for 7 frames. It looks like the reference image slowly changes so the score is high at first and then decreases. And the area in the alarm images decreases. So all that seem right and understood. My question is how best to avoid these false triggers?

Frame Type Time Time delta Score
11 Alarm 06:18:24 2.00 68
12 Alarm 06:18:24 2.13 53
13 Alarm 06:18:24 2.38 51
14 Alarm 06:18:24 2.49 47
15 Alarm 06:18:24 2.76 25
16 Alarm 06:18:25 3.14 7
17 Alarm 06:18:25 3.50 7
18 Normal 06:18:26 4.00 0

The email contains:
Event Id : 612690
Length : 9.74
Frames : 47 (7)
Scores : t258 m68 a36
In the even list in the console:
Id Name Time Secs Frames Score
612690 Event- 612690 2024-09-09 06:18:22 9.74 47/7 36/68

[iconnor]

YOu can set alrm frame coutn to something > 1... maybe 2 or 3 wold suffice.

[JimS]

alarm frame count is already at 5. Not sure if that was a default or if I changed it at some time. I did notice that reference image blend was set to 6.25% (indoor) so changed it to 12.5% (outdoor) - I think that just updates the reference image faster so that should help. And it is an outdoor camera. Before that change I added a small preclusive zone with preset of "fast, medium sensitivity" which did not fix the issue but there may be better settings for this case.

[JimS]

The image blend change seems to work at least on the change to B/W tonight. Will give it a couple days to see how it works.

[JimS]

Spoke too soon! It didn't work yesterday at dawn but did in the evening and this morning. The morning shows 7 alarm frames and some actual events are only 5. This is with a precursor zone. Ideas?

[JimS]

Seems we need a way to flush the reference image or someway to regenerate in just a few frames for large changes. Maybe there exists something like that?

[MechanicMike]

Hey JimS, sounds like you're dealing with some tricky triggers on your camera system when it switches from night to day mode. To avoid those false alarms, I'd recommend adjusting the sensitivity settings on your camera. Play around with the settings to see if you can find a sweet spot where it won't trigger unnecessarily during the transition periods. Additionally, you could try covering certain parts of the camera lens during the switch to minimize any sudden changes that might set off the alarm. Hope this helps, man!

[JimS]

Is there some way to detect if camera is in B/W or color? If so perhaps I could disable trigger for a few frames on mode change until the reference image catches up.