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Proceedings Paper

Interactive selection of JPEG quantization tables for digital x-ray image compression
Author(s): Lewis E. Berman; Babak Nouri; Gautam Roy; Leif Neve
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Paper Abstract

Selecting an appropriate quantization table for Joint Photographic Exploitation Group (JPEG) data compression of a class of images can be an arduous task. We have designed a graphical user interface to study the effects of quantization on compression ratio and the resulting image quality. The tool calculates several measures of the difference between the original and lossy compressed image. Some of these measures are entropy, mean square error, and normalized mean square error. These measures aid the user in selecting the optimal quantization values with respect to image fidelity and compression ratio for a particular class of images.

Paper Details

Date Published: 8 September 1993
PDF: 12 pages
Proc. SPIE 1913, Human Vision, Visual Processing, and Digital Display IV, (8 September 1993); doi: 10.1117/12.152695
Show Author Affiliations
Lewis E. Berman, National Library of Medicine (United States)
Babak Nouri, National Library of Medicine (United States)
Gautam Roy, Bendix Field Engineering Corp. (United States)
Leif Neve, Century Computing, Inc. (United States)


Published in SPIE Proceedings Vol. 1913:
Human Vision, Visual Processing, and Digital Display IV
Jan P. Allebach; Bernice E. Rogowitz, Editor(s)

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