Question

If the boundary is traversed in the clockwise direction, a vertex point ‘p’ is said to be a part of the convex segment if the rate of change of slope at ‘p’ is:

(a) Negative

(b) Zero

(c) Non negative

(d) Cannot be determined

I had been asked this question by my college director while I was bunking the class.

The above asked question is from Boundary Descriptors in chapter Representation and Description of Digital Image Processing

Answer 1

Right answer is (c) Non negative

Explanation: If the boundary is traversed in the clockwise direction and the rate of change of slope at the vertex point is non negative, then that point is said to be in the convex segment.