Hello, I’m trying to figure out how to: 1) determine the outer edge of a 2D binary object, and; 2) then interpolate around the edge as if there are no imperfections on the surface. The first step I’ve done in ImageJ, but I can’t find a way to do the second!

- is using magic wand to identify the perimeter
- is an example of how I need to remove surface imperfections and interpolate between points to get a simpler outer perimeter
- is a convex hull selection, but it doesn’t adhere to the original perimeter enough

Any suggestions would be greatly appreciated!