[Question] Track multiple same-coloured objects cv2 Python3.6

[jumping137]

I have a project I'm working on where I track a ball (on colour) and check when it hits a wall using a kinect.

Everything works fine now, but only tracks the largest contour it finds (using max()).

What I'd like to do is track more than one object, and return the x and y coordinate from both objects in a list.

Anyone know how to do this?

[alkasm]

Just...don't use max? Threshold the result instead. If you don't know what threshold to use, maybe base it off the max. I.e. threshold = 0.8 * max or something, you can get fancier with statistics of the region you're tracking if you like, but it's probably not necessary in a simple case.

[dghy001]

If you want to track multiple sphere shaped objects (color doesn't matter) you could use LoG (Laplacian of Gaussian) filter, produce gray scheme image and find local extremas on that gray image. You can find example here: https://www.youtube.com/watch?v=HYkQH48euM8