Issue No.12 - December (1974 vol.23)
A. Rosenfeld , Computer Science Center, University of Maryland
It is shown that a digital arc S is the digitization of a straight line segment if and only if it has the "chord property:" the line segment joining any two points of S lies everywhere within distance 1 of S. This result is used to derive several regularity properties of digitizations of straight line segments.
Digital pictures, digital straight lines.
A. Rosenfeld, "Digital Straight Line Segments", IEEE Transactions on Computers, vol.23, no. 12, pp. 1264-1269, December 1974, doi:10.1109/T-C.1974.223845