Improved Resolution Scalability for Bi-Level Image Data in JPEG2000

In this paper, we address issues regarding bi-level image compression using JPEG2000. While JPEG2000 is designed to compress both bi-level and continuous tone imagery using a single unified framework, there exist significant limitations with respect to its use in the lossless compression of bi-level...

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Bibliographic Details
Main Authors: Raguram, R., Marcellin, M.W., Bilgin, A.
Format: Conference Proceeding
Language:English
Subjects:
Codecs
Degradation
Discrete wavelet transforms
Displays
Image analysis
Image coding
Image quality
Image resolution
Scalability
Transform coding
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Summary:In this paper, we address issues regarding bi-level image compression using JPEG2000. While JPEG2000 is designed to compress both bi-level and continuous tone imagery using a single unified framework, there exist significant limitations with respect to its use in the lossless compression of bi-level imagery. In particular, substantial degradation in image quality at low resolutions severely limits the resolution scalable features of the JPEG2000 code-stream. We analyze these effects and present two efficient methods to improve resolution scalability for bi-level imagery in JPEG2000. It may be noted that both proposed methods are compliant with Part-I of the JPEG2000 standard
ISSN:1068-0314
2375-0359
DOI:10.1109/DCC.2007.48