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New to Jitter
Mar 30 2006 | 3:19 am
Hi!
I'm trying to develop a fairly simple instalation for a graduation exhibition for my university. A camera monitors the visitor's movement. The video that is projected shows only moving objects extracted from the static background. A couple of years ago a visiting artist showed me a jitter object that separated the moving objects from the static ones in a single video window. I have searched through all jitter's 1.5.2 objects and I can't find any such object.I have worked a little with MAX but with Jitter i'm a complete newbie.
Can any one tell me if that object exists as an external and where i can find it? or If anyone can help me out with an alternative method I would appreciate it very very much!
Thanx
Mariel
- Mar 30 2006 | 8:32 pmI don't know of a specific object that does this all in one (might be a freeframe plugin somewhere or third party object), however the Jitter objects are designed to be low level enough that it should not be hard to build a typical background subtraction algorithm with a handful of objects. I believe a few have been posted to the archives (search on background subtraction, background elimination, or difference keying in the Jitter and MaxMSP forum archives):I've attached a crude example to the fundamental strategies involved in background elimination below. You may also want to check out the cv.jit objects for motion tracking:Hope this helps.-Joshua
- Mar 31 2006 | 4:44 amThanks for the help! I'll let know how I'm doing with this project.M.
