Adaptive inverse halftoning for scanned document images through multiresolution and multiscale analysis

Hirobumi Nishida

doi:10.1117/12.521340

15 December 2003 Adaptive inverse halftoning for scanned document images through multiresolution and multiscale analysis

Hirobumi Nishida

Author Affiliations +

Proceedings Volume 5296, Document Recognition and Retrieval XI; (2003) https://doi.org/10.1117/12.521340
Event: Electronic Imaging 2004, 2004, San Jose, California, United States

Abstract

This paper describes an efficient algorithm for inverse halftoning of scanned color document images to resolve problems with interference patterns such as moire and graininess when the images are displayed or printed out. The algorithm is suitable for software implementation and useful for high quality printing or display of scanned document images delivered via networks from unknown scanners. A multi-resolution approach is used to achieve practical processing speed under software implementation. Through data-driven, adaptive, multi-scale processing, the algorithm can cope with a variety of input devices and requires no information on the halftoning method or properties (such as coefficients in dither matrices, filter coefficients of error diffusion kernels, screen angles, or dot frequencies). Effectiveness of the new algorithm is demonstrated through real examples of scanned color document images, as well as quantitative evaluations with synthetic data.

Citation Download Citation

Hirobumi Nishida "Adaptive inverse halftoning for scanned document images through multiresolution and multiscale analysis", Proc. SPIE 5296, Document Recognition and Retrieval XI, (15 December 2003); https://doi.org/10.1117/12.521340

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available