Computer and Microfilm Combined in Phototypesetting
H. E. Haynes · Information Display · 1972
Abstract Phototypesetting on microfilm denotes the generation and recording, onto a small‐format medium, of high‐quality text characters of a variety of styles and sizes. At the same time it implies high speed. Therefore, the starting point has to be the electronic generation of character images. In contrast to more conventional electronic phototypesetting, the accent on speed and the small‐image format changes the balance among the factors which influence image quality. This paper discusses the interplay of these factors, describes a useful approach to image‐quality prediction, and presents examples of text copy having known degrees of quality degradation which serve to link numerical descriptions of system performance to the subjective quality levels they represent.