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dc.contributor.authorYang, JCYen_US
dc.contributor.authorTsai, WHen_US
dc.date.accessioned2014-12-08T15:01:59Z-
dc.date.available2014-12-08T15:01:59Z-
dc.date.issued1997-03-01en_US
dc.identifier.issn0167-8655en_US
dc.identifier.urihttp://hdl.handle.net/11536/712-
dc.description.abstractMoire patterns often appear in images obtained from scanning printings on magazines or newspapers. The patterns do not exist in the original printings but come from alias sampling of the screened halftone pictures. A new method of scanning is proposed to suppress the moire patterns. First, the Fourier analyses of both screening and scanning are presented, from which the new moire suppression scanning method is derived. The method employs a double-scan process. In the second scan, the scan position is shifted by half of the sampling grid distance of the first scan in either or both of the horizontal and vertical directions. Then by averaging the images of the two scans, most of the moire fringes can be removed. Some experimental results are shown to demonstrate the feasibility of the proposed approach. (C) 1997 Published by Elsevier Science B.V.en_US
dc.language.isoen_USen_US
dc.subjectmoire patternen_US
dc.subjectsuppressionen_US
dc.subjectscanningen_US
dc.subjectprintingen_US
dc.subjectscreened picturesen_US
dc.subjectFourier analysisen_US
dc.titleSuppression of moire patterns in scanned halftone images by double scans with grid movementsen_US
dc.typeArticleen_US
dc.identifier.journalPATTERN RECOGNITION LETTERSen_US
dc.citation.volume18en_US
dc.citation.issue3en_US
dc.citation.spage213en_US
dc.citation.epage227en_US
dc.contributor.department交大名義發表zh_TW
dc.contributor.department資訊工程學系zh_TW
dc.contributor.departmentNational Chiao Tung Universityen_US
dc.contributor.departmentDepartment of Computer Scienceen_US
dc.identifier.wosnumberWOS:A1997WZ62900001-
dc.citation.woscount2-
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