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Reference Image Blend %ge

Posted: Wed Sep 04, 2013 10:10 pm
by whatboy
In 1.26 it is set to 12 as default... should I change it back to 7???

Re: Reference Image Blend %ge

Posted: Thu Sep 05, 2013 1:15 am
by knight-of-ni
Looks like mastertheknife made that change about 2 years ago: ... d6d39680c0

He is the one that wrote the performance patch, which significantly reduced the amount of cpu resources required by zoneminder. I'd leave it at 12 unless you have a reason not to.

Re: Reference Image Blend %ge

Posted: Sun Sep 08, 2013 5:06 am
by mastertheknife

I'm actually not sure why i changed it, its been a long time.
Keep in mind that when fast blend is enabled (default), only these values are possible: 50%, 25%, 12.5%, 6.25%, 3.125% and 1.5%.
ZM rounds to the nearest one.

From my experience, 12.5% should be used for outdoors (because of clouds & weather changes) and 6.25% should be used indoors.
For outdoors you may also want to change "Alarm frame count" from 1 to 2 to reduce the amount of false alarms.


Re: Reference Image Blend %ge

Posted: Sun Sep 08, 2013 9:28 pm
by whatboy
Thank you very much! both!