Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Relation between Graininess and Granularity for Black-and-White Samples with Nonuniform Granularity Spectra

Not Accessible

Your library or personal account may give you access

Abstract

In order to determine the relation between the visual impression of graininess and the objectively determined granularity of a wide range of granularity types, a series of samples was prepared containing uniformly exposed black-and-white materials and prints (transparencies) containing varying degrees of mottle. These samples were judged by the method of paired comparisons at different magnifications and scanned to obtain the standard deviation σ(D) for a wide range of scanning apertures. The psychophysical relationship between the two functions, (1) graininess versus magnification and (2) granularity σ(D) versus the square root of the scanning area, depends on the character of the scanning operation performed by the eye. An estimate of the size of the effective scanning spot of the eye can be obtained from these data.

© 1959 Optical Society of America

Full Article  |  PDF Article
More Like This
Experimental Study of rms Granularity as a Function of Scanning-Spot Size*

George C. Higgins and Keith F. Stultz
J. Opt. Soc. Am. 49(9) 925-929 (1959)

The Relationship Between the Granularity and Graininess of Developed Photographic Materials*

Loyd A. Jones and George C. Higgins
J. Opt. Soc. Am. 35(7) 435-457 (1945)

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 Optica member, or as an authorized user of your institution.

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

Figures (14)

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

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

Tables (3)

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

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

Equations (28)

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

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved