DE69413330T2 - Halbtonrasterungsverfahren für eine Wiedergabevorrichtung beschränkter Dichteauflösung - Google Patents

Halbtonrasterungsverfahren für eine Wiedergabevorrichtung beschränkter Dichteauflösung

Info

Publication number
DE69413330T2
DE69413330T2 DE69413330T DE69413330T DE69413330T2 DE 69413330 T2 DE69413330 T2 DE 69413330T2 DE 69413330 T DE69413330 T DE 69413330T DE 69413330 T DE69413330 T DE 69413330T DE 69413330 T2 DE69413330 T2 DE 69413330T2
Authority
DE
Germany
Prior art keywords
density
screening method
rendering
display device
resolution
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.)
Expired - Lifetime
Application number
DE69413330T
Other languages
English (en)
Other versions
DE69413330D1 (de
Inventor
Marc Herregods
Dirk Broddin
Paul Delabastita
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.)
Agfa NV
Original Assignee
Agfa Gevaert NV
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 Agfa Gevaert NV filed Critical Agfa Gevaert NV
Publication of DE69413330D1 publication Critical patent/DE69413330D1/de
Application granted granted Critical
Publication of DE69413330T2 publication Critical patent/DE69413330T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04N1/40—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
    • H04N1/4055—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern
    • H04N1/4058—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern with details for producing a halftone screen at an oblique angle
    • 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
    • H04N1/4055—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern
    • H04N1/4057—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern the pattern being a mixture of differently sized sub-patterns, e.g. spots having only a few different diameters
    • 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)
  • Color, Gradation (AREA)
  • Image Generation (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
DE69413330T 1993-07-12 1994-06-29 Halbtonrasterungsverfahren für eine Wiedergabevorrichtung beschränkter Dichteauflösung Expired - Lifetime DE69413330T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE9300713A BE1007264A4 (nl) 1993-07-12 1993-07-12 Rastermethode voor een schrijfsysteem met beperkte densiteitsresolutie.

Publications (2)

Publication Number Publication Date
DE69413330D1 DE69413330D1 (de) 1998-10-22
DE69413330T2 true DE69413330T2 (de) 1999-05-12

Family

ID=3887170

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69413330T Expired - Lifetime DE69413330T2 (de) 1993-07-12 1994-06-29 Halbtonrasterungsverfahren für eine Wiedergabevorrichtung beschränkter Dichteauflösung

Country Status (6)

Country Link
US (1) US5654808A (de)
EP (1) EP0634862B1 (de)
JP (1) JP3479560B2 (de)
AT (1) ATE171330T1 (de)
BE (1) BE1007264A4 (de)
DE (1) DE69413330T2 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69527675T2 (de) * 1994-04-27 2003-04-03 Agfa Gevaert Nv Mehrstufige Halbtonrasterung mit gruppierten Punkten und Linien für den elektrografischen Farbdruck
EP0710898B1 (de) * 1994-11-04 1998-09-30 Agfa-Gevaert N.V. Vorrichtung zum direkten elektrostatischen Drucken mit Reihen kleinerer und grösserer Öffnungen
DE69513648T2 (de) * 1995-07-14 2000-06-15 Agfa Gevaert Nv Druckkopfstruktur zur Anwendung in einer DEP Vorrichtung
CA2185829C (en) * 1995-09-27 2007-09-25 Vadlamannati Venkateswar Two-dimensional modulation for line screen printing
US5859928A (en) * 1996-06-21 1999-01-12 Hewlett-Packard Company Jitter-form background control for minimizing spurious gray cast in scanned images
US6317220B1 (en) * 1996-12-06 2001-11-13 Seiko Epson Corporation Image forming apparatus capable of preventing linear nonuniformity and improving image quality
DE69620204T2 (de) 1996-12-23 2002-10-24 Agfa Gevaert Nv Drucker und Druckverfahren
DE19724066B4 (de) * 1997-06-07 2007-04-19 Man Roland Druckmaschinen Ag Verfahren zur Korrektur von Geometriefehlern bei der Übertragung von Informationen auf einen Bedruckstoff
JP3561398B2 (ja) 1997-09-24 2004-09-02 大日本スクリーン製造株式会社 画素の階調再現を利用した網点画像記録方法および装置
JP3522147B2 (ja) * 1998-04-28 2004-04-26 セイコーエプソン株式会社 ハーフトーニング装置及び画像形成装置
US6690837B1 (en) 1998-11-03 2004-02-10 Agfa-Gevaert Screening method for overlapping sub-images
JP3835037B2 (ja) 1999-02-05 2006-10-18 セイコーエプソン株式会社 カラー電子写真の画像処理方法及びその電子写真装置
JP3589286B2 (ja) * 1999-08-23 2004-11-17 セイコーエプソン株式会社 画像処理装置及びその方法、並びにその画像処理装置を備えたプリンタシステム
JP2003508281A (ja) * 1999-09-09 2003-03-04 アレイ アクチボラゲット 直接静電印刷方法及び装置
US6940619B1 (en) 1999-12-30 2005-09-06 Texas Instruments Incorporated Polynomial based multi-level screening
JP2001257884A (ja) * 1999-12-30 2001-09-21 Texas Instr Inc <Ti> 多項式を基礎とした多レベルスクリーニング
JP3985437B2 (ja) * 2000-08-03 2007-10-03 セイコーエプソン株式会社 電子写真の画像形成装置及びその画像形成プログラム製品
US7009736B2 (en) * 2000-12-22 2006-03-07 Texas Instruments Incorporated Tile map based multi-level supercell screening
US20030107768A1 (en) * 2001-12-04 2003-06-12 Crounse Kenneth R. Halftoning with uniformly dispersed dot growth
KR100402801B1 (en) * 2002-04-09 2003-10-22 Samsung Electronics Co Ltd Image forming apparatus
WO2004049694A1 (en) * 2002-11-25 2004-06-10 Agfa-Gevaert Method for generating non-printing dots in a screened representation of an image
US20040130753A1 (en) * 2003-01-06 2004-07-08 Crounse Kenneth R. Halftone method and system using hybrid AM/FM screening for highlight/shadow tonal regions
GB0618412D0 (en) * 2006-09-19 2006-11-01 Punch Graphix Int Nv Near press 4-color N-color conversion method and system for late binding of press details in a RIP-less color conversion or documented CMYK workflow
WO2008062524A1 (fr) * 2006-11-22 2008-05-29 Pioneer Corporation Dispositif de commande de dessin, dispositif de dessin et programme de commande de dessin
EP2129100B1 (de) 2008-05-29 2014-02-12 Xeikon Manufacturing N.V. Autotypische multilevel-Rasterung mit verbessertem Detail und reduziertem Bildrauschen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1797412B2 (de) * 1968-09-26 1972-05-04 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Verfahren zum aufzeichnen der durch abtasten von zu reproduzierenden halbtonbildvorlagen gewonnenen, quantisierten und ggf. digitalisierten bildsignale
JPS57160264A (en) * 1981-03-30 1982-10-02 Canon Inc Recorder of half tone picture
EP0304289A3 (de) * 1987-08-18 1991-03-13 Kabushiki Kaisha Toshiba Halbtonbildreproduktionsverfahren und -Gerät
EP0334518B1 (de) * 1988-03-10 1997-10-15 Canon Kabushiki Kaisha Bilderzeugungsgerät
JPH0722348B2 (ja) * 1989-09-14 1995-03-08 大日本スクリーン製造株式会社 網目版画像記録方法
DE4025793A1 (de) * 1990-08-13 1992-02-20 Siemens Ag Verfahren zum drucken eines halbtonbildes
US5155599A (en) * 1991-07-25 1992-10-13 Miles, Inc. Screening system and method for color reproduction in offset printing

Also Published As

Publication number Publication date
DE69413330D1 (de) 1998-10-22
ATE171330T1 (de) 1998-10-15
BE1007264A4 (nl) 1995-05-02
JP3479560B2 (ja) 2003-12-15
US5654808A (en) 1997-08-05
EP0634862B1 (de) 1998-09-16
EP0634862A1 (de) 1995-01-18
JPH0757104A (ja) 1995-03-03

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Melnychuck Fourier spectra of digital halftone images containing random position errors and reflectance non-uniformities

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8327 Change in the person/name/address of the patent owner

Owner name: AGFA GRAPHICS N.V., MORTSEL, BE