Graphic arts perspective on digital halftoning

Advances in the halftone process over the last century have served to continually improve color image reproduction. This development is approaching a mature phase where, with the help of digital electronics, we are formulating algorithms for optimal quality, consistency, and productivity. The problem definition is complex when all issues are considered so that, rather than delving into specific algorithms, this paper discusses the general technical considerations that have guided the development of electronic halftoning in the commercial graphic arts industry. A look at the advantages of a new strategy, stochastic screening, also is included.