Question

If the boundary is specified in a single color, and if the algorithm proceeds pixel by pixel until the boundary color is encountered is called

(a) Scan-line fill algorithm

(b) Boundary-fill algorithm

(c) Flood-fill algorithm

(d) Parallel curve algorithm

I got this question by my college professor while I was bunking the class.

This intriguing question originated from Line Filling Algorithms in portion Graphics Primitives of Computer Graphics

Answer 1

Right choice is (b) Boundary-fill algorithm

For explanation I would say: This algorithm proceeds outward pixel by pixel until the boundary color is encountered.