How to fill the interior of the boundary surface of the object?

Hi dear community members,

i have an object whose boundary surface is filled as 1s and 3s. i want to fill the interior. using imfill() function, it filled the interior but it fills extra regions as well.

The file is attanced for the points of the objects. Thanks in advance for cooperation.

Answer 1

[darova]

use bwselect

[M.S. Khan]

This function doesnt work properly. i have applied it.

[darova]

Did you use row and column properly? Can you show the code?

[M.S. Khan]

i have used the following code but its not giving me the result. Please guide.

A = load(Boundary_closed_1s_3s.txt)
[r,c]= size(A)
B = bwselect(A,c,r,4)

[darova]

You should pass r and c coordinates you want to pick

B = bwselect(A,round(c/2),round(r/2),4)

[M.S. Khan]

B contains all zeros. can bwselect() function be used to fill the interior.

[M.S. Khan]

Hi dear darova, after using bwselect(), B only shows zeros. Could you share your expert opinion? Regards!

[Image Analyst]

bwselect() allows you to manually, or by code, select a particular blob(s) that you want to extract into a new image. It does not fill shapes.