Articles

Check image compression using a layered coding method

[+] Author Affiliations
Jincheng Huang, Yao Wang

Department of Electrical Engineering, Polytechnic University, Brooklyn, New York

Edward K. Wong

Department of Computer and Information Science, Polytechnic University Brooklyn, New York?11201

J. Electron. Imaging. 7(3), 426-442 (Jul 01, 1998). doi:10.1117/1.482610
History: Received July 18, 1997; Revised April 15, 1998; Accepted April 20, 1998
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Abstract

An emerging trend in the banking industry is to digitize checks for storage and transmission. An immediate requirement for efficient storage and transmission is check image compression. General purpose compression algorithms such as JPEG and wavelet-based methods produce annoying ringing or blocking artifacts at high compression ratios. In this paper, a layered approach to check image compression is proposed in which a check image is represented in several layers. The first layer describes the foreground map; the second layer specifies the gray levels of foreground pixels; the third layer is a lossy representation of the background image; and the fourth layer describes the error between the original and the reconstructed image of the first three layers. The layered coding approach produces images of better quality than traditional JPEG and wavelet coding methods, especially in the foreground, i.e., the text and graphics. In addition, this approach allows progressive retrieval or transmission of different image layers. © 1998 SPIE and IS&T.

© 1998 SPIE and IS&T

Citation

Jincheng Huang ; Yao Wang and Edward K. Wong
"Check image compression using a layered coding method", J. Electron. Imaging. 7(3), 426-442 (Jul 01, 1998). ; http://dx.doi.org/10.1117/1.482610


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