How will you avoid gating the color of the object you're trying to track as well?

To use your method below I'd suggest using some combination of [separator] and [pix_background] to create a mask so that [pix_blob] (or the color gate, depending on the setup) only affects new objects introduced into the environment.

That's very incomplete suggestion, but I don't have pd in front of me right now to toy with examples.

Best of luck, let me know if you get a patch together, I'd like to see it.

-Ben

Wondering the best solution for color tracking in Pd-extended. I'd like my solution to be cross-platform so that rules out PDP and friends.

All I've come up with is to use [pix_blob] to track the color, and to try to minimize the tracking color in the background. There's probably a Gem object where I can "gate" a color i.e. eliminate a color from a pixel if it is less than a certain amount. In my rendering chain after my webcam I'd gate the color I am trying to track, then use [pix_blob] with a color weight of entirely the tracking color.

Is there a better way?

-John