IPCam motion detection

Begonnen von Martijn, 24 November 2016, 14:18:29

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With ImageMagick's convert it is possible to compare two images. It can be used to do motion detection and trigger something. Does anyone has experience with this?
I'm investigating this for motion detection and/or if the camera is correctly positioned.
My cam also supports motion detection and FTPs the images to a folder; seems nice because processing is done by the cam. Only how to check/read it within FHEM? there's no CGI call for this from the cam.
Thus my idea was to check it within FHEM: get two (or more) images and compare them; depending on a threshold trigger an alarm.

Anyone with experience or ideas?Or are there better solutions to this (without PIR  ;))