Screen pattern removal for character pattern extraction from high-resolution color document images

Hideaki Goto, Hirotomo Aso

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Screen patterns used in offset-printing become visible or cause moiré noise in the images if the documents are scanned at high resolution such as 400dpi or more. This has been an obstacle in developing document recognition systems which handle color documents. This paper proposes a new method for filtering screen patterns/noise in high-resolution color document images. The method utilizes a wavelet analysis for screen pattern detection. Experimental results show that our method can smear periodic screen patterns effectively preserving thin character strokes.

Original languageEnglish
Title of host publicationProceedings of the 17th International Conference on Pattern Recognition, ICPR 2004
EditorsJ. Kittler, M. Petrou, M. Nixon
Pages490-493
Number of pages4
DOIs
Publication statusPublished - 2004 Dec 17
EventProceedings of the 17th International Conference on Pattern Recognition, ICPR 2004 - Cambridge, United Kingdom
Duration: 2004 Aug 232004 Aug 26

Publication series

NameProceedings - International Conference on Pattern Recognition
Volume1
ISSN (Print)1051-4651

Other

OtherProceedings of the 17th International Conference on Pattern Recognition, ICPR 2004
CountryUnited Kingdom
CityCambridge
Period04/8/2304/8/26

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition

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