DE69219527T2 - Rasterungs- und Farbreproduktionssystem beim Offsetdruck - Google Patents

Rasterungs- und Farbreproduktionssystem beim Offsetdruck

Info

Publication number
DE69219527T2
DE69219527T2 DE69219527T DE69219527T DE69219527T2 DE 69219527 T2 DE69219527 T2 DE 69219527T2 DE 69219527 T DE69219527 T DE 69219527T DE 69219527 T DE69219527 T DE 69219527T DE 69219527 T2 DE69219527 T2 DE 69219527T2
Authority
DE
Germany
Prior art keywords
screening
offset printing
color reproduction
reproduction system
color
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
DE69219527T
Other languages
English (en)
Other versions
DE69219527D1 (de
Inventor
Paul A 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.)
Bayer AG
Bayer Corp
Original Assignee
Bayer AG
Bayer Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24956617&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69219527(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bayer AG, Bayer Corp filed Critical Bayer AG
Publication of DE69219527D1 publication Critical patent/DE69219527D1/de
Application granted granted Critical
Publication of DE69219527T2 publication Critical patent/DE69219527T2/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
    • H04N1/46—Colour picture communication systems
    • H04N1/52—Circuits or arrangements for halftone screening
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F5/00—Screening processes; Screens therefor
    • G03F5/22—Screening processes; Screens therefor combining several screens; Elimination of moiré
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color Image Communication Systems (AREA)
  • Image Processing (AREA)
DE69219527T 1991-07-25 1992-07-15 Rasterungs- und Farbreproduktionssystem beim Offsetdruck Expired - Lifetime DE69219527T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/735,644 US5155599A (en) 1991-07-25 1991-07-25 Screening system and method for color reproduction in offset printing

Publications (2)

Publication Number Publication Date
DE69219527D1 DE69219527D1 (de) 1997-06-12
DE69219527T2 true DE69219527T2 (de) 1998-01-02

Family

ID=24956617

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69219527T Expired - Lifetime DE69219527T2 (de) 1991-07-25 1992-07-15 Rasterungs- und Farbreproduktionssystem beim Offsetdruck
DE69231866T Expired - Lifetime DE69231866T2 (de) 1991-07-25 1992-07-15 Rasterungssystem und Farbreproduktionsverfahren beim Offsetdruck

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69231866T Expired - Lifetime DE69231866T2 (de) 1991-07-25 1992-07-15 Rasterungssystem und Farbreproduktionsverfahren beim Offsetdruck

Country Status (4)

Country Link
US (1) US5155599A (de)
EP (2) EP0525520B1 (de)
JP (2) JP3343140B2 (de)
DE (2) DE69219527T2 (de)

Families Citing this family (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5477257A (en) * 1991-11-11 1995-12-19 Matsushita Electric Industrial Co., Ltd. Image forming method and apparatus using rotated screen with pulse width modulation
ATE150245T1 (de) 1992-05-22 1997-03-15 Agfa Gevaert Nv Verbessertes verfahren zur frequenzmodulierten halbtonrasterung
BE1007264A4 (nl) * 1993-07-12 1995-05-02 Agfa Gevaert Nv Rastermethode voor een schrijfsysteem met beperkte densiteitsresolutie.
JPH07101032A (ja) * 1993-09-30 1995-04-18 Sony Corp レーザ製版装置及び刷版
DE69527675T2 (de) * 1994-04-27 2003-04-03 Agfa Gevaert Nv Mehrstufige Halbtonrasterung mit gruppierten Punkten und Linien für den elektrografischen Farbdruck
EP0680193B1 (de) * 1994-04-27 2000-07-12 Agfa-Gevaert N.V. Tonabhängige Rosettenstrukturen bei der Mehrschichthalbtonrasterung durch Phasenmodulation
US5381247A (en) * 1994-05-03 1995-01-10 Xerox Corporation Method for reducing 2-color moire in 4-color printing
US5537223A (en) * 1994-06-02 1996-07-16 Xerox Corporation Rotating non-rotationally symmetrical halftone dots for encoding embedded data in a hyperacuity printer
US5552898A (en) 1994-07-06 1996-09-03 Agfa-Gevaert Lossy and lossless compression in raster image processor
US5594839A (en) * 1994-10-17 1997-01-14 Seiko Epson Corporation Apparatus and method for improving black and color separation in halftoned images by printing black dots in a different screen phase
EP0741486B1 (de) * 1995-05-05 2000-08-30 Agfa-Gevaert N.V. Moiréfreie Multipegelhalbtonerzeugung für Farbbilder
US6532082B1 (en) 1998-07-16 2003-03-11 Esko-Graphics, N.V. Halftone printing plates containing microscopic perforations and methods for producing same
US6249355B1 (en) 1998-10-26 2001-06-19 Hewlett-Packard Company System providing hybrid halftone
US6690837B1 (en) 1998-11-03 2004-02-10 Agfa-Gevaert Screening method for overlapping sub-images
US6346993B1 (en) * 1999-02-05 2002-02-12 Xerox Corporation Tone-variation-resistant phase-shiftable halftone screen system and method of using
US7268920B1 (en) * 1999-03-16 2007-09-11 Megadot Systems Limited Halftone patterns
WO2001058140A1 (en) * 2000-02-06 2001-08-09 Indigo N.V. Screening method
JP2001219599A (ja) * 2000-02-10 2001-08-14 Alps Electric Co Ltd 画像形成方法
US6798539B1 (en) * 2000-10-30 2004-09-28 Xerox Corporation Method for moire-free color halftoning using non-orthogonal cluster screens
US7394570B2 (en) * 2001-03-07 2008-07-01 Esko-Graphics Imaging Gmbh Method and apparatus for eliminating seams in screened image data for repetitive printing
US6505554B1 (en) 2001-07-03 2003-01-14 Ralph Rhein Screen printing process with diminished moire effect
US20030081256A1 (en) * 2001-10-30 2003-05-01 Xerox Corporation Method of designing halftone screens using non-orthogonal supercells
US20030107768A1 (en) * 2001-12-04 2003-06-12 Crounse Kenneth R. Halftoning with uniformly dispersed dot growth
JP4100157B2 (ja) * 2002-12-09 2008-06-11 富士ゼロックス株式会社 画像形成装置及び方法
JP2005300912A (ja) * 2004-04-12 2005-10-27 Pfu Ltd 多色刷網目版の作成方法
US7394572B2 (en) * 2004-09-23 2008-07-01 Kabushiki Kaisha Toshiba Method and apparatus for processing of half-tone image
US7688473B2 (en) * 2004-10-26 2010-03-30 Xerox Corporation Tinted edge enhancement using harmonic halftones for the boundary pixels
US7480076B2 (en) * 2005-01-28 2009-01-20 Xerox Corporation Moiré-free color halftone configuration
JP4319182B2 (ja) * 2005-03-31 2009-08-26 富士フイルム株式会社 画像形成方法、スクリーンセット及び画像形成装置
US20060274338A1 (en) * 2005-06-07 2006-12-07 Monotype Imaging, Inc. Method and system for inter-channel clock frequency selection with periodic halftoning
US20060279788A1 (en) * 2005-06-10 2006-12-14 Monotype Imaging, Inc. Automatic generation of supercell halftoning threshold arrays for high addressability devices
DE102005052157A1 (de) * 2005-11-02 2007-05-03 Man Roland Druckmaschinen Ag Verfahren und Vorrichtung zur Bebilderung einer löschbaren und wieder verwendbaren Tiefdruckform
US20070125468A1 (en) * 2005-12-05 2007-06-07 Poling David C Pneumatic tire
US7898692B2 (en) * 2006-11-30 2011-03-01 Xerox Corporation Rosette printing with up to five colors
US7675651B2 (en) * 2006-11-30 2010-03-09 Xerox Corporation Moire-free color halftone configuration employing common frequency vectors
US7679787B2 (en) * 2006-11-30 2010-03-16 Xerox Corporation N-color printing with hexagonal rosettes
US8254002B2 (en) * 2008-02-08 2012-08-28 Kabushiki Kaisha Toshiba Screen generating apparatus, screen generating method, and image processing apparatus
JP4975663B2 (ja) * 2008-03-12 2012-07-11 大日本スクリーン製造株式会社 閾値マトリクス生成方法、網点画像生成方法および網点画像生成装置
EP2112818B1 (de) * 2008-04-22 2015-06-10 Heidelberger Druckmaschinen Aktiengesellschaft Verfahren zur Reduzierung der Flächendeckung einer Druckplatte
EP2129100B1 (de) 2008-05-29 2014-02-12 Xeikon Manufacturing N.V. Autotypische multilevel-Rasterung mit verbessertem Detail und reduziertem Bildrauschen
EP2199065B1 (de) 2008-12-19 2012-03-21 Agfa Graphics N.V. Bildverarbeitungsverfahren für dreidimensionales Drucken
ES2436421T3 (es) 2008-12-19 2014-01-02 Agfa Graphics N.V. Método para reducir los defectos de calidad de imagen en la impresión tridimensional
JP4752920B2 (ja) * 2009-01-22 2011-08-17 ブラザー工業株式会社 画像処理装置及び画像処理プログラム
US8351085B2 (en) * 2009-08-12 2013-01-08 Xerox Corporation Moire-free color halftoning methods, apparatus and systems
US8467103B2 (en) * 2009-08-12 2013-06-18 Xerox Corporation Moiré-free color halftoning methods, apparatus and systems
US8547598B2 (en) * 2011-04-28 2013-10-01 Xerox Corporation Polygonal-boundary-based halftone method
US9211746B1 (en) 2014-06-26 2015-12-15 Eastman Kodak Company Hybrid printer for printing on non-porous media
JP6970191B2 (ja) 2016-05-27 2021-11-24 エスコ ソフトウェア ベスローテン フェンノートシャップ メット ベペルクテ アーンスプラケリイクヘイト フレキソ印刷の色調反応をさらに滑らかにする方法
AU2018356367B2 (en) 2017-10-27 2021-04-01 Eco3 Bv Digital halftoning with spiral dots
JP7299981B2 (ja) 2018-08-10 2023-06-28 アグファ・オフセット・ビーブイ 塊状マイクロドットを用いたデジタルハーフトーン化
WO2020221684A1 (en) 2019-04-30 2020-11-05 Agfa Nv Digital halftoning with spiral dots

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742129A (en) * 1971-07-07 1973-06-26 Harris Intertype Corp Apparatus and method for generating halftones for image reproduction
NL184927C (nl) * 1978-10-04 1989-12-01 Stork Brabant Bv Werkwijze voor het vormen van voor reproduktie geschikte gerasterde beelden.
EP0079974B1 (de) * 1981-11-20 1987-02-04 DR.-ING. RUDOLF HELL GmbH Rastersystem für den Mehrfarbendruck
US4924301A (en) * 1988-11-08 1990-05-08 Seecolor Corporation Apparatus and methods for digital halftoning
JPH0691620B2 (ja) * 1988-11-15 1994-11-14 大日本スクリーン製造株式会社 カラー画像の網目版画像記録方法
US5040080A (en) * 1989-06-06 1991-08-13 Scholten Alvin D Electronic screening
WO1991002426A2 (en) * 1989-08-04 1991-02-21 Intergraph Corporation Rapid variable angle digital screening
DE69025706T2 (de) * 1989-11-08 1996-08-01 Adobe Systems Inc Verfahren zur Erzeugung gerasterter Halbtonbilder

Also Published As

Publication number Publication date
JPH05257268A (ja) 1993-10-08
EP0748109A2 (de) 1996-12-11
DE69231866D1 (de) 2001-07-12
EP0748109A3 (de) 1997-03-19
DE69231866T2 (de) 2002-03-28
US5155599A (en) 1992-10-13
JP2003110862A (ja) 2003-04-11
JP3343140B2 (ja) 2002-11-11
DE69219527D1 (de) 1997-06-12
EP0525520A2 (de) 1993-02-03
EP0748109B1 (de) 2001-06-06
EP0525520B1 (de) 1997-05-07
EP0525520A3 (en) 1993-04-07

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Legal Events

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8364 No opposition during term of opposition