Abstract

The presence of graininess in a photographic emulsion provides a threshold below which a signal will not be detectable. Graininess thus acts as a limiting factor on dynamic range.

Granularity data of photographic emulsions are used to determine the minimum usable spot size when the dynamic range or the number of discernible grey steps of the recording is specified, or the resulting dynamic range, if the resolution element size is specified.

A brief analysis is made of the information content as affected by the element size, i.e., scanning spot size.

© 1958 Optical Society of America

Full Article  |  PDF Article

Corrections

Leo Levi, "Errata," J. Opt. Soc. Am. 48, 276_3-276 (1958)
https://www.osapublishing.org/josa/abstract.cfm?uri=josa-48-4-276_3

OSA Recommended Articles
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)

Graininess and Entropy

Edward L. O’Neill
J. Opt. Soc. Am. 48(12) 945-947 (1958)

Spatial Frequency Response of Certain Photographic Emulsions*†

James A. Eyer
J. Opt. Soc. Am. 48(12) 938-944 (1958)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (2)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (27)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription