NL1012708C2 - Afdrukken van digitale kleurenbeelden met locaal aangepaste halftoning. - Google Patents

Afdrukken van digitale kleurenbeelden met locaal aangepaste halftoning. Download PDF

Info

Publication number
NL1012708C2
NL1012708C2 NL1012708A NL1012708A NL1012708C2 NL 1012708 C2 NL1012708 C2 NL 1012708C2 NL 1012708 A NL1012708 A NL 1012708A NL 1012708 A NL1012708 A NL 1012708A NL 1012708 C2 NL1012708 C2 NL 1012708C2
Authority
NL
Netherlands
Prior art keywords
separation
edge transition
edge
halftone
transition
Prior art date
Application number
NL1012708A
Other languages
English (en)
Dutch (nl)
Inventor
Romeo Maria Van Strijp
Ronald Fabel
Original Assignee
Ocu Technologies B V
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 Ocu Technologies B V filed Critical Ocu Technologies B V
Priority to NL1012708A priority Critical patent/NL1012708C2/nl
Priority to DE60032545T priority patent/DE60032545T2/de
Priority to EP00202545A priority patent/EP1073261B1/en
Priority to JP2000224395A priority patent/JP4404459B2/ja
Priority to US09/626,421 priority patent/US6842268B1/en
Application granted granted Critical
Publication of NL1012708C2 publication Critical patent/NL1012708C2/nl

Links

Classifications

    • 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
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/58—Edge or detail enhancement; Noise or error suppression, e.g. colour misregistration correction
    • 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
    • H04N1/46—Colour picture communication systems
    • H04N1/52—Circuits or arrangements for halftone screening

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color, Gradation (AREA)
  • Color Image Communication Systems (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
  • Image Processing (AREA)
NL1012708A 1999-07-26 1999-07-26 Afdrukken van digitale kleurenbeelden met locaal aangepaste halftoning. NL1012708C2 (nl)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL1012708A NL1012708C2 (nl) 1999-07-26 1999-07-26 Afdrukken van digitale kleurenbeelden met locaal aangepaste halftoning.
DE60032545T DE60032545T2 (de) 1999-07-26 2000-07-18 Farbdruck digitaler Bilder mit lokal angepasster Halbtonrasterung
EP00202545A EP1073261B1 (en) 1999-07-26 2000-07-18 Printing of digital colour images with locally adjusted halftoning
JP2000224395A JP4404459B2 (ja) 1999-07-26 2000-07-25 局所的に調節されたハーフトーンを用いてカラー画像を印刷する方法及び装置
US09/626,421 US6842268B1 (en) 1999-07-26 2000-07-26 Printing of digital color images with locally adjusted half-toning

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1012708 1999-07-26
NL1012708A NL1012708C2 (nl) 1999-07-26 1999-07-26 Afdrukken van digitale kleurenbeelden met locaal aangepaste halftoning.

Publications (1)

Publication Number Publication Date
NL1012708C2 true NL1012708C2 (nl) 2001-01-29

Family

ID=19769647

Family Applications (1)

Application Number Title Priority Date Filing Date
NL1012708A NL1012708C2 (nl) 1999-07-26 1999-07-26 Afdrukken van digitale kleurenbeelden met locaal aangepaste halftoning.

Country Status (5)

Country Link
US (1) US6842268B1 (ja)
EP (1) EP1073261B1 (ja)
JP (1) JP4404459B2 (ja)
DE (1) DE60032545T2 (ja)
NL (1) NL1012708C2 (ja)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7694887B2 (en) * 2001-12-24 2010-04-13 L-1 Secure Credentialing, Inc. Optically variable personalized indicia for identification documents
WO2003056500A1 (en) * 2001-12-24 2003-07-10 Digimarc Id Systems, Llc Covert variable information on id documents and methods of making same
WO2003088144A2 (en) * 2002-04-09 2003-10-23 Digimarc Id Systems, Llc Image processing techniques for printing identification cards and documents
US6793309B2 (en) * 2002-05-03 2004-09-21 Milliken & Company Fault tolerant superpixel constructions
US7824029B2 (en) 2002-05-10 2010-11-02 L-1 Secure Credentialing, Inc. Identification card printer-assembler for over the counter card issuing
US7295341B2 (en) * 2002-12-09 2007-11-13 Xerox Corporation System for processing monochrome and full-color digital image data
US20050030586A1 (en) * 2003-07-23 2005-02-10 Jincheng Huang Adaptive halftone scheme to preserve image smoothness and sharpness by utilizing X-label
WO2005062978A2 (en) * 2003-12-23 2005-07-14 Digimarc Corporation Optically variable personalized indicia for identification documents
DE102004062841A1 (de) 2004-12-27 2006-07-13 OCé PRINTING SYSTEMS GMBH Verfahren, Computerprogramm, Computer und Drucksysteme zum Trapping von Bilddaten
JP4510743B2 (ja) * 2005-10-17 2010-07-28 Ｋｄｄｉ株式会社 割符画像生成方法および装置、割符画像生成用プログラムおよび秘密画像復号方法
US20070109336A1 (en) * 2005-11-11 2007-05-17 Lexmark International, Inc. Method for reducing an amount of ink used in printing an image
DE102006008768A1 (de) * 2006-02-24 2007-08-30 OCé PRINTING SYSTEMS GMBH Verfahren und Vorrichtung zum Verarbeiten eines Druckdatenstroms zum Erzeugen mehrfarbiger Druckbilder mit Hilfe eines Hochleistungsdrucksystems
US8223402B2 (en) * 2009-05-04 2012-07-17 Xerox Corporation Color trapping on a halftoned bi-level bitmap
JP6127877B2 (ja) * 2013-09-30 2017-05-17 ブラザー工業株式会社 画像処理装置、および、コンピュータプログラム

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0110353A1 (en) * 1982-11-30 1984-06-13 Kabushiki Kaisha Toshiba Picture signal processing system suitable for displaying continuous tone pictures
EP0889641A2 (en) * 1997-06-30 1999-01-07 Hewlett-Packard Company Halftoning system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE15950T1 (de) 1982-06-04 1985-10-15 Hell Rudolf Dr Ing Gmbh Verfahren zur vermeidung von bildfehlern beim mehrfarbendruck, die durch fehlerhaften uebereinanderdruck der farbauszuege entstehen.
JPS59205876A (ja) 1983-05-10 1984-11-21 Canon Inc カラー画像処理装置
NL8803064A (nl) 1988-12-15 1990-07-02 Oce Nederland Bv Werkwijze en inrichting voor het vormen van een meerkleurenbeeld.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0110353A1 (en) * 1982-11-30 1984-06-13 Kabushiki Kaisha Toshiba Picture signal processing system suitable for displaying continuous tone pictures
EP0889641A2 (en) * 1997-06-30 1999-01-07 Hewlett-Packard Company Halftoning system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WONG K.Y. ET AL: "Adaptive Switching of Dispersed and Clustered Halftone Patterns for Bi-Level Image Rendition", SID INTERNATIONAL SYMPOSIUM, DIGEST OF TECHNICAL PAPERS, SOCIETY FOR INFORMATION DISPLAY, LOS ANGELES (US), 1977, pages 124 - 125, XP000605139 *

Also Published As

Publication number Publication date
DE60032545D1 (de) 2007-02-08
EP1073261B1 (en) 2006-12-27
EP1073261A1 (en) 2001-01-31
JP2001086337A (ja) 2001-03-30
DE60032545T2 (de) 2007-10-04
JP4404459B2 (ja) 2010-01-27
US6842268B1 (en) 2005-01-11

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Effective date: 20090201