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Optical Engineering

Reduction Of Blocking Effects In Image Coding
Author(s): Howard C. Reeve; Jae S. Lim
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Paper Abstract

In some important image coding techniques, such as transform coding, an image is first divided into subimages, and then each subimage is coded independently. The segmentation procedure has significant advantages, but when used in a low bit rate scheme, an undesirable side effect can occur. Specifically, when the image is reconstructed at the decoder, a "blocking effect" can develop due to discontinuities between the subimages. Two methods are developed to reduce the blocking effect. The performance of these methods when applied to a discrete cosine transform image coder is discussed.

Paper Details

Date Published: 1 February 1984
PDF: 4 pages
Opt. Eng. 23(1) 230134 doi: 10.1117/12.7973248
Published in: Optical Engineering Volume 23, Issue 1
Show Author Affiliations
Howard C. Reeve, Bell Laboratories Merrimack Valley (United States)
Jae S. Lim, Massachusetts Institute of Technology (United States)


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