Hi, How to mark boundary of an image. My given input image is collection of trees and my work is to count the no. of trees. I want the boundary line for each and every tree.. But i need it in the form of circle i hav tried regionprops help with code

Hi, How to mark boundary of an image. My given input image is collection of trees and my work is to count the no. of trees. I found the boundary line for each and every tree.. Boundary drawn looks like star shaped.. But i need it in the form of circle..

one circle per tree.

how to do this.i hav tried regionprops but iam not getting exact o/p.plzz help me with code