Abstract

The frequency response of a linear system is unique, whereas the response of a nonlinear system depends upon the wave form used to make the measurement. Characterizing the filtering properties of a photographic system by a single spatial frequency response curve is therefore valid only if the system is linear. It is shown that certain common emulsion-developer systems can be satisfactorily treated by linear methods; an example is also given of a system where such methods are inadequate. A simple model is introduced to aid in specifying the frequency response and transient or “edge” response of the photographic systems tested. Damping constants based upon this model are tabulated for several emulsion-developer combinations and limitations of the model are discussed.

© 1958 Optical Society of America

On the Information-Detecting Capacity of Photographic Emulsions*

H. J. Zweig, G. C. Higgins, and D. L. MacAdam
J. Opt. Soc. Am. 48(12) 926-933 (1958)

Approximation of the Sine-Wave Response of Photographic Emulsions

Dieter P. Paris
J. Opt. Soc. Am. 51(9) 988-991 (1961)

Measurement of Sine-Wave Response of a Photographic Emulsion*

Robert L. Lamberts
J. Opt. Soc. Am. 49(5) 425-428 (1959)

The Response of a Photographic Emulsion to Alpha-Rays

T. R. Wilkins and R. N. Wolfe
J. Opt. Soc. Am. 23(9) 324-332 (1933)

On the Effect of Granularity on Dynamic Range and Information Content of Photographic Recordings*

Leo Levi
J. Opt. Soc. Am. 48(1) 9-12 (1958)