Areas incorrect (alarm pixels outside area)

ZoneMinder / zoneminder

ZoneMinder is a free, open source Closed-circuit television software application developed for Linux which supports IP, USB and Analog cameras.

http://www.zoneminder.com/

GNU General Public License v2.0

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Areas incorrect (alarm pixels outside area) #4151

Open BlueMax opened 1 month ago

BlueMax commented 1 month ago

Describe Your Environment zoneminder/jammy,now 1.37.63~20240924172342-jammy amd64 ppa.launchpadcontent.net/iconnor/zoneminder-master/ubuntu/ jammy main Firefox 130.0.1 720p h264 passthrough rtsp 20fps (5fps analysis, greyscale)

Describe the bug Analysis frames show alarm blobs outside any area. Looks like there's some shifting/offset.

ZM-area-bug01 ZM-area-bug02

BlueMax commented 1 month ago

~~The 'inactive' zone disconnects the red area/polygons and the points will be reconnected directly.~~ Its not the 'inactive' zone (i've deleted it and created two active zones instead, same result). Its something about the shape of the polygon itself.

This is a camera day/night switch (all pixel alarm).

ZM-area-bug03 ZM-area-bug04 Edit: The right mask is slightly modified (1 point deleted). I posted it in case you want to reproduce it. It still has the same bug.