ATE222039T1 - Mehrstufige halbtonrasterung mit gruppierten punkten und linien für den elektrografischen farbdruck - Google Patents

Mehrstufige halbtonrasterung mit gruppierten punkten und linien für den elektrografischen farbdruck

Info

Publication number
ATE222039T1
ATE222039T1 AT95200837T AT95200837T ATE222039T1 AT E222039 T1 ATE222039 T1 AT E222039T1 AT 95200837 T AT95200837 T AT 95200837T AT 95200837 T AT95200837 T AT 95200837T AT E222039 T1 ATE222039 T1 AT E222039T1
Authority
AT
Austria
Prior art keywords
lines
disclosed
continuous tone
images
halftone
Prior art date
Application number
AT95200837T
Other languages
English (en)
Inventor
Dirk Broddin
Frank Deschuytere
Original Assignee
Agfa Gevaert
Xeikon 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8216825&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE222039(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Agfa Gevaert, Xeikon Nv filed Critical Agfa Gevaert
Application granted granted Critical
Publication of ATE222039T1 publication Critical patent/ATE222039T1/de

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
    • H04N1/40087—Multi-toning, i.e. converting a continuous-tone signal for reproduction with more than two discrete brightnesses or optical densities, e.g. dots of grey and black inks on white paper

Landscapes

  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
  • Color Image Communication Systems (AREA)
  • Color, Gradation (AREA)
  • Color Electrophotography (AREA)
AT95200837T 1994-04-27 1995-04-03 Mehrstufige halbtonrasterung mit gruppierten punkten und linien für den elektrografischen farbdruck ATE222039T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94201151 1994-04-27

Publications (1)

Publication Number Publication Date
ATE222039T1 true ATE222039T1 (de) 2002-08-15

Family

ID=8216825

Family Applications (1)

Application Number Title Priority Date Filing Date
AT95200837T ATE222039T1 (de) 1994-04-27 1995-04-03 Mehrstufige halbtonrasterung mit gruppierten punkten und linien für den elektrografischen farbdruck

Country Status (5)

Country Link
US (3) US5901275A (de)
EP (1) EP0680195B1 (de)
JP (1) JPH07299933A (de)
AT (1) ATE222039T1 (de)
DE (1) DE69527675T2 (de)

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US6404508B1 (en) * 1997-03-12 2002-06-11 Minolta Co., Ltd. Gradation reproduction
US6014226A (en) * 1997-07-01 2000-01-11 Xerox Corporation Multilevel halftoning with reduced texture contours and coverage control
JPH11168627A (ja) 1997-08-27 1999-06-22 Fuji Photo Film Co Ltd 画像形成方法
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
EP1059803B1 (de) * 1999-06-07 2007-07-18 Canon Kabushiki Kaisha Bildaufzeichnungsgerät und Verfahren
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
JP4761630B2 (ja) * 2001-02-08 2011-08-31 株式会社ミヤコシ 表裏印字装置
US7492480B2 (en) * 2001-08-27 2009-02-17 Phototype Engraving Company System for halftone screen production
DE10211530A1 (de) * 2002-03-15 2003-10-09 Oce Printing Systems Gmbh Elektrofotografisches Verfahren und Drucksystem zum Erzeugen eines Druckbildes
US6917448B2 (en) * 2002-05-22 2005-07-12 Creo Il. Ltd. Dot gain calibration method and apparatus
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
JP2005027109A (ja) * 2003-07-03 2005-01-27 Ricoh Co Ltd カラー画像形成装置およびカラー画像形成方法
CN1301859C (zh) * 2004-03-31 2007-02-28 凌阳科技股份有限公司 具有半色调单色处理的印表机系统及方法
US7751475B1 (en) * 2004-06-22 2010-07-06 Apple Inc. Arbitrary-resolution, extreme-quality video codec
US7206001B1 (en) * 2004-06-22 2007-04-17 Apple Computer, Inc. Fractal-dithering technique for image display
KR100648657B1 (ko) * 2004-10-11 2006-11-24 삼성전자주식회사 클러스터를 통한 오차 확산장치
US7468814B2 (en) * 2005-02-08 2008-12-23 Astro-Med, Inc. Algorithm for controlling half toning process
KR101296681B1 (ko) * 2008-09-24 2013-08-16 삼성전자주식회사 영상 처리 방법 및 이를 이용한 화상형성장치
US9734440B2 (en) 2014-01-29 2017-08-15 Rampage Llc Raster image processor with printhead profile compensation for a multi level digital printing machine
WO2019147267A1 (en) 2018-01-26 2019-08-01 Hewlett-Packard Development Company, L.P. Halftone image creation

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US4533941A (en) * 1983-01-14 1985-08-06 Coulter Systems Corporation Method and apparatus for half-tone reproduction of a varying tone original image
JPS59205874A (ja) * 1983-05-10 1984-11-21 Canon Inc 画像デ−タ圧縮装置
US5099259A (en) * 1985-01-31 1992-03-24 Kabushiki Kaisha Toshiba Halftone image printing device
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US4974067A (en) * 1986-06-06 1990-11-27 Ricoh Company, Ltd. Multi-step-digital color image reproducing method and apparatus
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Also Published As

Publication number Publication date
US5901275A (en) 1999-05-04
DE69527675T2 (de) 2003-04-03
US5799137A (en) 1998-08-25
DE69527675D1 (de) 2002-09-12
EP0680195B1 (de) 2002-08-07
EP0680195A1 (de) 1995-11-02
JPH07299933A (ja) 1995-11-14
US5982989A (en) 1999-11-09

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