blob detection (ofxOpenCv) – blobs with IDs?

Is there any library, class or extension for the ofxOpenCv, that keeps the blobs, give them IDs so that i can recognize the same blobs? Or perhaps there is even s.th. like a multitouch event class (touch_down, touch_moved, touch_up)?

hi rool,

i seem to remember that palintra had an addon made that kept track of blobs and their IDs.
ofxCvContourFinderToo think it was called.

check out his example on this post,
http://forum.openframeworks.cc/t/criaturas/979/0

L.

actually, that example doesn’t work very well…
it doesn’t work with more than 2 blobs, which i only found out too late because with that installation most of the time there where only 2 hands over the light table…
but i know there is a blob tracker that i believe was made by Vanderlin, dont know where to download it though…

*edit* actually try looking in this thread, you might find what you want there http://forum.openframeworks.cc/t/ofcvblobtracker/717/0

cheers

Rui

if it’s for multitouch take a look at comunity core vision:

http://ccv.nuigroup.com/