On the Application of Information Theory to Photography
A.E. Saunders · The Journal of Photographic Science · 1973
An elementary account of the application of information theory to photography is given and the two methods of estimating the information capacity of a photographic layer are described. The first involves the division of the layer into “cells”, each of which may take one of a set of distinguishable density levels, whilst the second involves the use of sine-waves. It has been claimed that the second method is superior owing to the absence of “intersymbol interference” and the fact that both the Wiener spectrum of granularity and the spread function are contained explicitly in the formula for information capacity. The purpose of this paper is to analyse these claims.