Implications of the Methods Chosen for the Measurement of the Statistical Properties of Photographic Images

Abstract

A survey is made of current opinions on the measurement of transfer functions and noise-power spectra of photographic materials. Conclusions are drawn about the difficulties introduced by the particular form of non-linearity found in the photographic process which lead to suggestions that future work moy need to use analytical techniques accepting such non-linearities. In such analyses. digital computers will be necessary, and some early work is described in which use is made of direct digital feed-out of data from a microdensitometer.

Notes

Paper presented at the “Internationl Colloquium of Photographic Science”, September 1963, Turin.