Measure eccentricity of a polygon

Question

I am trying to compute the eccentricity of a polygon in Mathematica.

I see that I can do something similar with ComponentMeasurements, but I am not sure how to get a Graphics[Polygon[]] expression to play nicely with it.

Answer 1

This seems to work for me:

ComponentMeasurements[
 Graphics[
  Graphics[
   RegularPolygon[5]
   ]
  ]
 , "Eccentricity"]

However, I think you need to invert the colors. Using a test, you need:

ComponentMeasurements[
 Graphics[
  {White, Disk[{0, 0}, 1]}
  , Background -> Black]
 , "Eccentricity"]

to get 0