Implementation of JBIG2 CODEC with Effective Document Segmentation 


Vol. 27,  No. 6, pp. 575-583, Jun.  2002


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  Abstract

JBIG2 is an International Standard for compression of Bi-level images and documents. JBIG2 supports three encoding modes for high compression according to region features of documents. One of which is generic region coding for bitmap coding. The basic bitmap coder is either MMR or arithmetic coding. Pattern matching coding method is used for text region, and halftone pattern coding is used for halftone region. In this paper, a document is segmented into line-art, halftone and text region for JBIG2 encoding and JBIG2 CODEC is implemented. For efficient region segmentation of documents, region segmentation method using wavelet coefficient is applied with existing boundary extraction technique. In case of facsimile test image(IEEE-167a), there is improvement in compression ratio of about 2% and enhancement of subjective quality. Also, we propose arbitrary shape halftone region coding, which improves subjective quality in the neighboring text of halftone region.

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  Cite this article

[IEEE Style]

O. Baek, H. M. Kim, H. H. Ko, "Implementation of JBIG2 CODEC with Effective Document Segmentation," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 6, pp. 575-583, 2002. DOI: .

[ACM Style]

Okyu Baek, Hyun Min Kim, and Hyung Hwa Ko. 2002. Implementation of JBIG2 CODEC with Effective Document Segmentation. The Journal of Korean Institute of Communications and Information Sciences, 27, 6, (2002), 575-583. DOI: .

[KICS Style]

Okyu Baek, Hyun Min Kim, Hyung Hwa Ko, "Implementation of JBIG2 CODEC with Effective Document Segmentation," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 6, pp. 575-583, 6. 2002.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880