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Proceedings Paper

Gray scale enhances display readability of bitmapped documents
Author(s): Olov Ostberg; Dennis Disfors; Yingduo Feng
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Paper Abstract

Bitmapped images of high resolution, say 300 dpi rastered documents, stored in the memory of a PC are at best only borderline readable on the PC's display screen (say a 72 dpi VGA monitor). Results from a series of exploratory psycho-physical experiments, using the Adobe PhotoshopR software, show that the readability can be significantly enhanced by making use of the monitor's capability to display shades of gray. It is suggested that such a gray scale adaptation module should be bundled to all software products for electronic document management. In fact, fax modems are already available in which this principle is employed, hereby making it possible to read incoming fax documents directly on the screen.

Paper Details

Date Published: 1 May 1994
PDF: 9 pages
Proc. SPIE 2179, Human Vision, Visual Processing, and Digital Display V, (1 May 1994); doi: 10.1117/12.172699
Show Author Affiliations
Olov Ostberg, Swedish Agency for Administrative Development (Sweden)
Dennis Disfors, Chalmers Univ. of Technology (Sweden)
Yingduo Feng, Telia Research AB (Sweden)


Published in SPIE Proceedings Vol. 2179:
Human Vision, Visual Processing, and Digital Display V
Bernice E. Rogowitz; Jan P. Allebach, Editor(s)

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