A feasible technique for deriving the spread function and modulation transfer function of a vesicular film has been determined. This technique is based on a method described by R. Byer which does not require the use of a microdensitometer, but only that of a "macro" densitometer. The method utilizes the fact that a halftone dot will change in size as a function of exposure. The spread function of the vesicular film was approximated with a mathematical model. The results, although favorable in many ways, are not conclusive. Some of the advantages and disadvantages associated with this technique as applied to vesicular film are discussed.
Library of Congress Subject Headings
Photography--Films--Testing; Images, Photographic
Department, Program, or Center
School of Photographic Arts and Sciences (CIAS)
Gulden, Mark, "Halftone Dot Method for Image Evaluation of High-Resolution Films Applied to Vesicular Film" (1980). Thesis. Rochester Institute of Technology. Accessed from
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