How does zoneminder come up with a score for an image?

lazyleopard · Post by **lazyleopard** » Tue Apr 20, 2004 10:53 am

How does zoneminder come up with a score for an image?

Obviously there are elements of blob size and blob count in there, but what about things like pixel value differences, etc?

Are there ways to tailor the scoring so that blobs of (say) 400 pixels or so whould score much higher than blobs of (say) 10000 pixels?

nugget · Post by **nugget** » Wed Aug 18, 2004 1:52 am

Can anyone answer the question above?

I am attempting to write some documentation on how to configure motion capture zones, best practices, techniques I have learnt, etc. Exactly what does the score on the stats window tell me?

Based on score, can I tune the zone threshhold (pixel thresholds, etc) to eliminate the noise?

Post by **zoneminder** » Thu Sep 02, 2004 11:43 pm

Hi,

The algorithm is published, but only in the code. I'll try and extract it and put it here. It is a little arbitrary though and aims to basically give a bigger score to fewer large contiguous objects than many smaller ones. It's not too complicated though.

Phil,