JP2003244428A - スキャンしたイメージを識別する方法 - Google Patents

スキャンしたイメージを識別する方法

Info

Publication number
JP2003244428A
JP2003244428A JP2003001932A JP2003001932A JP2003244428A JP 2003244428 A JP2003244428 A JP 2003244428A JP 2003001932 A JP2003001932 A JP 2003001932A JP 2003001932 A JP2003001932 A JP 2003001932A JP 2003244428 A JP2003244428 A JP 2003244428A
Authority
JP
Japan
Prior art keywords
image
halftone
original image
resolution
scanned
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP2003001932A
Other languages
English (en)
Japanese (ja)
Other versions
JP2003244428A5 (enExample
Inventor
Bruce L Johnson
ブルース・エル・ジョンソン
Bradley J Anderson
ブラッドリー・ジェイ・アンダーソン
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HP Inc
Original Assignee
Hewlett Packard Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of JP2003244428A publication Critical patent/JP2003244428A/ja
Publication of JP2003244428A5 publication Critical patent/JP2003244428A5/ja
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/04—Preventing copies being made of an original
    • G03G21/046—Preventing copies being made of an original by discriminating a special original, e.g. a bank note
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00838—Preventing unauthorised reproduction
    • H04N1/00883—Auto-copy-preventive originals, i.e. originals that are designed not to allow faithful reproduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
JP2003001932A 2002-01-31 2003-01-08 スキャンしたイメージを識別する方法 Withdrawn JP2003244428A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/062,637 US20030142360A1 (en) 2002-01-31 2002-01-31 Method and system for identifying a scanned image
US10/062,637 2002-01-31

Publications (2)

Publication Number Publication Date
JP2003244428A true JP2003244428A (ja) 2003-08-29
JP2003244428A5 JP2003244428A5 (enExample) 2006-02-23

Family

ID=22043812

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003001932A Withdrawn JP2003244428A (ja) 2002-01-31 2003-01-08 スキャンしたイメージを識別する方法

Country Status (3)

Country Link
US (1) US20030142360A1 (enExample)
JP (1) JP2003244428A (enExample)
GB (1) GB2386021B (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050058476A1 (en) * 2003-09-17 2005-03-17 Canon Kabushiki Kaisha Copy-forgery-inhibited pattern density parameter determination method, copy-forgery-inhibited pattern image generation method, and image processing apparatus
US8049933B2 (en) 2003-09-17 2011-11-01 Canon Kabushiki Kaisha Copy-forgery-inhibited pattern image generation method and image processing apparatus
KR100536836B1 (ko) * 2004-01-14 2005-12-16 삼성전자주식회사 스캐너 및 그의 스케일 표시방법
JP4182046B2 (ja) * 2004-01-23 2008-11-19 キヤノン株式会社 印刷処理システムおよび印刷処理方法
US7468815B2 (en) * 2004-09-30 2008-12-23 Hewlett-Packard Development Company, L.P. Optical data processing using photo-detector array and framing marks on optical media

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4227720A (en) * 1978-11-08 1980-10-14 Burroughs Corporation Protected document
US5149140A (en) * 1991-03-11 1992-09-22 The Standard Register Company Security, information document
US6039357A (en) * 1992-01-08 2000-03-21 Moore North America, Inc. Security bands to prevent counterfeiting with color copies
US20030043413A1 (en) * 2001-08-31 2003-03-06 Jia Charles Chi System and method of detecting scanned halftone image and enhancing such image for reproduction

Also Published As

Publication number Publication date
GB0301944D0 (en) 2003-02-26
GB2386021B (en) 2005-11-16
US20030142360A1 (en) 2003-07-31
GB2386021A (en) 2003-09-03

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