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Proceedings Paper

New block coding method for bilevel images
Author(s): George R. Robertson; Maurice F. Aburdene; Richard J. Kozick
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Paper Abstract

A new block coding technique for the compression of bilevel text images is presented. The technique uses a combination of pre-processing the image to extract the edge information and block coding to compress the data. The key feature of the technique is simplicity in implementation. The pre-processing consists of an image differencing operation to decorrelate the strings of black pixels. The decorrelation is followed by the lossless coding of each block of the image. The performance of the new image differencing method is examined based on both theoretical and experimental code length data. Both theoretical and simulation results show that by pre-processing the image, the number of nonzero pixels can be significantly reduced and a more efficient block code is realized.

Paper Details

Date Published: 3 March 1995
PDF: 10 pages
Proc. SPIE 2418, Still-Image Compression, (3 March 1995); doi: 10.1117/12.204134
Show Author Affiliations
George R. Robertson, Harris RF Communications (United States)
Maurice F. Aburdene, Bucknell Univ. (United States)
Richard J. Kozick, Bucknell Univ. (United States)

Published in SPIE Proceedings Vol. 2418:
Still-Image Compression
Majid Rabbani; Edward J. Delp; Sarah A. Rajala, Editor(s)

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