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Proceedings Paper

An Overview Of Sensitometry And Densitometry For The Macro And Micro Conditions
Author(s): Stephen H. Shore
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Paper Abstract

Sensitometry and densitometry are the measurement techniques used to derive quantitative data from a pictorial record on photosensitive material. A general overview of these two areas will be presented progressing from the basic principles of each to the problems and pitfalls sometimes overlooked. Basic sensitometry in the macro sense will be covered including exposing methods, light sources, spectral conditions, attenuators, and photosensitive material peculiarities. The differences between macro and micro sensitometry will be elaborated upon with emphasis on light scattering, development adjacency effects, and granularity. Densitometry will be examined. The geometrical and spectral conditions, notation system, stand-ards, Callier Q factor, and types of instruments will be explained for macrodensitometry. The difference between macro and micro densitometry will then be studied plus the special problems of linearity, flare, coherency, maintainance of focus, and calibration for micro-densitometry.

Paper Details

Date Published: 1 March 1975
PDF: 15 pages
Proc. SPIE 0048, Acquisition and Analysis of Pictorial Data, (1 March 1975); doi: 10.1117/12.954064
Show Author Affiliations
Stephen H. Shore, G.A.F. Corporation (United States)

Published in SPIE Proceedings Vol. 0048:
Acquisition and Analysis of Pictorial Data
George A. Michael, Editor(s)

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