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Optical Engineering

Improved image reproduction from dc components
Author(s): Gopal Lakhani
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Paper Abstract

The Joint Photographic Expert Group standard provides a block smoothing method, that can be used to improve the visual quality of images reproduced from the dc coefficients alone. The method predicts ac coefficients of a block in terms of the dc values of the surrounding blocks. This note presents a new set of prediction equations. Experiments show that the proposed equations produce noticeable improvements in the visual quality of the reconstructed images.

Paper Details

Date Published: 1 December 1996
PDF: 4 pages
Opt. Eng. 35(12) doi: 10.1117/1.601106
Published in: Optical Engineering Volume 35, Issue 12
Show Author Affiliations
Gopal Lakhani, Texas Tech. Univ. (United States)


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