Fourier analysis and a computer were used to generate the Fourier series and coefficients for the transmission distribution of a square wave target and the effective exposure produced on Kodak Plus-X film. This was performed in an effort to find a workable alternative to the proposed American National Standards Institute (ANSI) method for the determination of the photographic modulation transfer function. The results showed that the square wave method generated a curve with the same general trend as the conventional ANSI method. The Fourier analyzed square wave method had a greater degree of variability than did the standard method. The square wave targets used for the determination were manufactured at the Rochester Institute of Technology.
Library of Congress Subject Headings
Photographic sensitometry; Photography--Films
Department, Program, or Center
School of Photographic Arts and Sciences (CIAS)
Moffett, David and Stanton, John, "The use of Fourier analyzed square waves in the determination of the modulation transfer function of photographic materials" (1978). Thesis. Rochester Institute of Technology. Accessed from
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