Improved Resolution Scalability for Bi-Level Image Data in JPEG2000

Author

Raguram, Rahul ; Marcellin, Michael W. ; Bilgin, Ali

Author_Institution

Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ

fYear

2007

fDate

27-29 March 2007

Firstpage

203

Lastpage

212

Abstract

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

Keywords

data compression; image coding; image resolution; JPEG2000 code-stream; bi-level image compression; bi-level image data; continuous tone imagery; image quality; lossless compression; resolution scalability; Codecs; Degradation; Discrete wavelet transforms; Displays; Image analysis; Image coding; Image quality; Image resolution; Scalability; Transform coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Data Compression Conference, 2007. DCC '07

Conference_Location

Snowbird, UT

ISSN

1068-0314

Print_ISBN

0-7695-2791-4

Type

conf

DOI

10.1109/DCC.2007.48

Filename

4148759