Need short one sentence explanaion on bwmorph

Hey, I was wondering if anyone could explain simply how bwmorph( , 'remove') decides what is an interior pixel to remove. I looked through mathworks and couldn't find it.

Thanks in advance

Answer 1

[Cris LaPierre]

Did you try the documentation?

"Removes interior pixels. This option sets a pixel to 0 if all its 4-connected neighbors are 1, thus leaving only the boundary pixels on."