I need to split a mask in such a way that if there is an inconsistency within the mask, it gets separated. For example, if I draw a mask on a cat, I want the wide part (the body) to be one mask and the narrow part (the tail) to be another.

Currently, I have a continuous mask that includes both the cat’s body and its tail. I want to separate this into two distinct masks. How can I achieve this using Python?

original mask

desired mask

I looked into using methods described in this, which focuses on polygon partitioning and separating contours into multiple triangles. However, this approach does not suit my needs, as I want to split the mask based on size and shape rather than creating multiple triangular partitions.