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 EP00202545A priority patent/EP1073261B1/fr
Priority to DE60032545T priority patent/DE60032545T2/de
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.
EP00202545A EP1073261B1 (fr) 1999-07-26 2000-07-18 Impression d'images numériques en couleurs avec obtention de demi-teintes ajustées localement
DE60032545T DE60032545T2 (de) 1999-07-26 2000-07-18 Farbdruck digitaler Bilder mit lokal angepasster Halbtonrasterung
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 (fr)
EP (1) EP1073261B1 (fr)
JP (1) JP4404459B2 (fr)
DE (1) DE60032545T2 (fr)
NL (1) NL1012708C2 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1459239B1 (fr) * 2001-12-24 2012-04-04 L-1 Secure Credentialing, Inc. Documents d identification comprenant des informations invis ibles variables et leurs procedes de production
US7694887B2 (en) * 2001-12-24 2010-04-13 L-1 Secure Credentialing, Inc. Optically variable personalized indicia for identification documents
US7815124B2 (en) * 2002-04-09 2010-10-19 L-1 Secure Credentialing, Inc. 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 (fr) * 2003-12-23 2005-07-14 Digimarc Corporation Empreintes personnalisees optiquement variables pour documents d'identification
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 (fr) * 1982-11-30 1984-06-13 Kabushiki Kaisha Toshiba Système de traitement de signal d'image approprié à affichage d'images en demi-teinte
EP0889641A2 (fr) * 1997-06-30 1999-01-07 Hewlett-Packard Company Système de rendu de demi-teintes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3266655D1 (en) 1982-06-04 1985-11-07 Hell Rudolf Dr Ing Gmbh Process to avoid image defects in multicolour printing caused by non coincident printing of the colour separations
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 (fr) * 1982-11-30 1984-06-13 Kabushiki Kaisha Toshiba Système de traitement de signal d'image approprié à affichage d'images en demi-teinte
EP0889641A2 (fr) * 1997-06-30 1999-01-07 Hewlett-Packard Company Système de rendu de demi-teintes

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

Similar Documents

Publication Publication Date Title
EP1505821B1 (fr) Appareil et procédé de traitement d'images et appareil de formation d'images
US7924469B2 (en) Image processing apparatus, image processing method, and program
US6215512B1 (en) Image forming apparatus with image distortion correction system
US5850298A (en) Image processing device eliminating background noise
NL1012708C2 (nl) Afdrukken van digitale kleurenbeelden met locaal aangepaste halftoning.
US20010016065A1 (en) Image processing apparatus for discriminating image field of original document plural times and method therefor
JP6895821B2 (ja) 画像処理装置および画像処理方法
EP3100862A1 (fr) Appareil et procédé de traitement d'image, programme, support d'impression et système d'impression à jet d'encre
US6834124B1 (en) Adaptive image enhancement filter
US20070236707A1 (en) Image processing apparatus, image processing method and image processing program
JP2009100228A (ja) 画像処理装置及びその制御方法
US6775031B1 (en) Apparatus and method for processing images, image reading and image forming apparatuses equipped with the apparatus, and storage medium carrying programmed-data for processing images
JP2001189849A (ja) 勾配ベースのトラップ方法及び装置
JPH05161025A (ja) カラー画像処理装置のパターン発生方式
CA2349314C (fr) Diffusion a niveaux multiples de l'erreur chromatique par quantification semi-vectorielle
US5777757A (en) Method and system for halftoning
US20030133160A1 (en) System and method of halftoning for multi-pass rendering
EP0248616A2 (fr) Appareil imprimeur d'image
JP2004135317A (ja) カラー画像処理装置およびカラー画像処理方法
US6002841A (en) Apparatus and method for processing image which adds identification information to be easily decipherable in high resolution image
JP2003230009A (ja) 画像形成装置
JP3738810B2 (ja) 画像印刷方法および装置
US6870640B1 (en) Method and apparatus for rendering a continuous tone image representation with multiple digital halftoning
US5446561A (en) Method and apparatus for digital scale halftoning with variable screen structure for electrophotographic printing devices
JPS63309458A (ja) 画像処理方法

Legal Events

Date Code Title Description
PD2B A search report has been drawn up
VD1 Lapsed due to non-payment of the annual fee

Effective date: 20090201