In this paper, we observe the shape of printed dots or clusters of dots, and consider the factors which affects the uniformity of dot size. It is important to discuss the shape of printed dots because dispersed dots and clustered dots produce the mid-tone images in the halftoning process. To investigate the halftoning of high density area of an image, we also observe ‘white clusters,’ which are the areas surrounded by dots.
Shigeru Kitakubo, Yasushi Hoshino, Shi-Biao Xu, "Characteristics of the Shapes of Printed Dots" in Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP18), 2002, pp 819 - 822, https://doi.org/10.2352/ISSN.2169-4451.2002.18.1.art00100_2