Question

Which of the following of a boundary is defined as the line perpendicular to the major axis?

(a) Equilateral axis

(b) Equidistant axis

(c) Minor axis

(d) Median axis

This question was addressed to me in final exam.

I want to ask this question from Boundary Descriptors in chapter Representation and Description of Digital Image Processing

Answer 1

Correct option is (c) Minor axis

To elaborate: The minor axis of a boundary is defined as the line perpendicular to the major axis and of such length that a box passing through the outer four points of intersection of the boundary with the two axes completely encloses the boundary.