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Proceedings Paper

Post-Filtering Of Transforms-Coded Irnagest
Author(s): Kou-Hu Tzou
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Paper Abstract

An effective filtering technique has been introduced to reduce the blocking effect in transform-coded images. The proposed approach, employs circular-asymmetric two-dimensional (anisotropic) filters adapted to the characteristics of the blocking noise. By adaptively pointing the major axis of the anisotropic filters to the direction perpendicular to the orientation of the block boundary, the anisotropic filter can effectively reduce the block appearance while preserving the sharpness of the transform-coded pictures. Computer simulation of this new method shows significant improvement in image quality subjectively as well as objectively.

Paper Details

Date Published: 16 December 1988
PDF: 6 pages
Proc. SPIE 0974, Applications of Digital Image Processing XI, (16 December 1988); doi: 10.1117/12.948449
Show Author Affiliations
Kou-Hu Tzou, Bell Communications Research (United States)

Published in SPIE Proceedings Vol. 0974:
Applications of Digital Image Processing XI
Andrew G. Tescher, Editor(s)

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