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How to quantify activity/motion Level of a videostream?

Hi!

I’m looking for a way to quantify the “activity” level of a videostream (like Flash does with video.activityLevel for example)
Activity level is close to Motion Level, I looked at the freeframe nodes (because most of them are dedicated to video stream analysis) but I didn’t find out one about Activity or motion level.
Does anyone know a way to quantify activity/motion level of a videostream ?

the trautner freeframe is what you’re looking for. you can calculate the activity level in several videoregions from its outputs.

wow perfect ! thx dude ^^