Compressing PC/AT-Based Video Graphics Array (VGA) Images

David R. Ahlgren; Hasan Gadjali; Leonard G. Roberts

doi:10.1117/12.962308

30 January 1990 Compressing PC/AT-Based Video Graphics Array (VGA) Images

David R. Ahlgren, Hasan Gadjali, Leonard G. Roberts

Proceedings Volume 1153, Applications of Digital Image Processing XII; (1990) https://doi.org/10.1117/12.962308
Event: 33rd Annual Technical Symposium, 1989, San Diego, United States

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.

Citation Download Citation

David R. Ahlgren, Hasan Gadjali, and Leonard G. Roberts "Compressing PC/AT-Based Video Graphics Array (VGA) Images", Proc. SPIE 1153, Applications of Digital Image Processing XII, (30 January 1990); https://doi.org/10.1117/12.962308

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