Mask for Motion?

[egge12]

this is a great tool and runs flawless on my Pi5 and Pi Zero 2W - both on Bookworm 64bit. thanks for sharing this on github!

Since I use it in trigger mode (motion detection) and had some "false detections" due to natural movements (e.g. tree and wind). Now I would like to ask if a "mask function" could be included? E.g. upload a black and white image, where only white areas are monitored for motion.

[signag]

Hi,
thanks for this suggestion.
It is on my ToDo list now.

[signag]

Hi,
it took a while, but with version 4.2, you can define Regions of Interest and/or Regions of NO Interest for Motion Detection.
It is not as fine-grained as a mask could be, but with a set of rectangle areas you can get close.

Maybe later I can think about drawing a mask for defining Regions of No Interest

[egge12]

Hi signag, thanks for the hint.... I will definitely test it on my Pi Zero2W... do you have a recommendation on the OS? I typically use Bookwork 32bit lite - always freshly setup to avoid conflicts with other projects... cheers egge Am Di., 2. Dez. 2025 um 13:08 Uhr schrieb signag ***@***.***>:

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Hi, it took a while, but with version 4.2, you can define *Regions of Interest* and/or *Regions of NO Interest* for Motion Detection <https://github.com/signag/raspi-cam-srv/blob/main/docs/TriggerMotion.md#regions-of-interest--regions-of-no-interest> . It is not as fine-grained as a mask could be, but with a set of rectangle areas you can get close. Maybe later I can think about drawing a mask for defining *Regions of No Interest* — Reply to this email directly, view it on GitHub <#57 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AQWUCKU3TTSGAKGFXAJWCO337V6L7AVCNFSM6AAAAAB35VLKLWVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTKMJTGQ4DSNY> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[signag]

Hi
The RoI Implementation requires OpenCV.
I have recently switched to Trixie also on the Zero and Zero2. That's what is now offered by imager. And it works.
However, for motion detection, I would stay with "Mean Square Dev". The others seem a little bit too resource consuming on the long run.

[egge12]

Hi, thanks for the hint with Trixie - I was not aware about a new OS. So I used according your guide Trixie 64bit with desktop and followed all steps - everything went smoothly, also startup... So far no issues at all and I will test it in next few days... Am Di., 2. Dez. 2025 um 22:54 Uhr schrieb signag ***@***.***>:

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Hi The RoI Implementation requires OpenCV. I have recently switched to Trixie also on the Zero and Zero2. That's what is now offered by imager. And it works. However, for motion detection, I would stay with "Mean Square Dev". The others seem a little bit too resource consuming on the long run. — Reply to this email directly, view it on GitHub <#57 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AQWUCKW62736SVIP77X4NH337YDDHAVCNFSM6AAAAAB35VLKLWVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTKMJUGA4DKMQ> . You are receiving this because you authored the thread.Message ID: ***@***.***>