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Proceedings Paper

Compressing PC/AT-Based Video Graphics Array (VGA) Images
Author(s): David R. Ahlgren; Hasan Gadjali; Leonard G. Roberts
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Paper Abstract

The need for a compression system to significantly reduce the size of high resolution PC/AT based Video Graphics Array (VGA) image (picture) files, which can range from 64 Kbytes to over 1 Mbyte, stimulated an extensive research program that resulted in the development of new image conpression systems. This Discrete Cosine Transform (DC') based compression scheme can reduce VGA image file sizes by a factor of more than 6-to-1 with only minor detectable image degradation. The technology to be discussed is designed specifically to operate on the PC/AT-based platform equipped with VGA display. This paper will discuss the characteristics of VGA images versus full color RGB images and the compatibilities between these two types of images.

Paper Details

Date Published: 30 January 1990
PDF: 9 pages
Proc. SPIE 1153, Applications of Digital Image Processing XII, (30 January 1990); doi: 10.1117/12.962308
Show Author Affiliations
David R. Ahlgren, Telephoto Communications, Inc (United States)
Hasan Gadjali, Telephoto Communications, Inc (United States)
Leonard G. Roberts, Telephoto Communications, Inc (United States)


Published in SPIE Proceedings Vol. 1153:
Applications of Digital Image Processing XII
Andrew G. Tescher, Editor(s)

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