Inserting a line in a moving object

I would like to insert a skeleton line that follows the movement of the tracked object.

The object is tracked using background subtraction.

Is such algorithm possible? If so how would I do it? A drawn red line example is shown in the following image below.

Answer 1

[Image Analyst]

Did you try calling plot() or rectangle()?

See attached demo.

[Harvey Carunungan]

No I have not tried.

The demo shows the color tracking of the object but I was thinking whether you could insert line segments on the detected object and follow its movements?