DE69819608D1 - Mehrpegelige Halbtonrasterung mit Rändern verringerter Textur und Deckungssteuerung - Google Patents

Mehrpegelige Halbtonrasterung mit Rändern verringerter Textur und Deckungssteuerung

Info

Publication number
DE69819608D1
DE69819608D1 DE69819608T DE69819608T DE69819608D1 DE 69819608 D1 DE69819608 D1 DE 69819608D1 DE 69819608 T DE69819608 T DE 69819608T DE 69819608 T DE69819608 T DE 69819608T DE 69819608 D1 DE69819608 D1 DE 69819608D1
Authority
DE
Germany
Prior art keywords
margins
coverage control
halftone screening
level halftone
reduced texture
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 - Fee Related
Application number
DE69819608T
Other languages
English (en)
Other versions
DE69819608T2 (de
Inventor
Steven J Harrington
Victor R Klassen
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.)
Xerox Corp
Original Assignee
Xerox 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
Application filed by Xerox Corp filed Critical Xerox Corp
Application granted granted Critical
Publication of DE69819608D1 publication Critical patent/DE69819608D1/de
Publication of DE69819608T2 publication Critical patent/DE69819608T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04N1/40087—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, Gradation (AREA)
DE69819608T 1997-07-01 1998-05-07 Mehrpegelige Halbtonrasterung mit Rändern verringerter Textur und Deckungssteuerung Expired - Fee Related DE69819608T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/886,742 US6014226A (en) 1997-07-01 1997-07-01 Multilevel halftoning with reduced texture contours and coverage control
US886742 1997-07-01

Publications (2)

Publication Number Publication Date
DE69819608D1 true DE69819608D1 (de) 2003-12-18
DE69819608T2 DE69819608T2 (de) 2004-05-13

Family

ID=25389670

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69819608T Expired - Fee Related DE69819608T2 (de) 1997-07-01 1998-05-07 Mehrpegelige Halbtonrasterung mit Rändern verringerter Textur und Deckungssteuerung

Country Status (4)

Country Link
US (1) US6014226A (de)
EP (1) EP0889639B1 (de)
JP (1) JPH1141465A (de)
DE (1) DE69819608T2 (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6373594B1 (en) * 1998-12-29 2002-04-16 Xerox Corporation Color printer halftoning method and apparatus
US7009731B1 (en) 1999-11-18 2006-03-07 Minolta Co., Ltd. Image processing apparatus capable of preventing pseudo contour
US6538677B1 (en) * 2000-05-17 2003-03-25 Heidelberger Druckmaschinen Ag Apparatus and method for gray level printing
US6595615B2 (en) 2001-01-02 2003-07-22 3M Innovative Properties Company Method and apparatus for selection of inkjet printing parameters
US6554414B2 (en) 2001-01-02 2003-04-29 3M Innovative Properties Company Rotatable drum inkjet printing apparatus for radiation curable ink
US6550906B2 (en) 2001-01-02 2003-04-22 3M Innovative Properties Company Method and apparatus for inkjet printing using UV radiation curable ink
US7528971B2 (en) * 2001-05-07 2009-05-05 Xerox Corporation Method for color halftoning when utilizing redundant color inks
EP1306805A1 (de) * 2001-10-25 2003-05-02 Mitsubishi Electric Information Technology Centre Europe B.V. Bildanalyse
US6543890B1 (en) 2001-12-19 2003-04-08 3M Innovative Properties Company Method and apparatus for radiation curing of ink used in inkjet printing
US7194684B1 (en) 2002-04-09 2007-03-20 Google Inc. Method of spell-checking search queries
US20040080762A1 (en) * 2002-10-25 2004-04-29 Xerox Corporation Half-tone based enhancement of black
US7033423B2 (en) * 2003-04-30 2006-04-25 Hewlett-Packard Development Company, L.P. Gray inks for ink-jet printing
US7140711B2 (en) 2003-07-21 2006-11-28 3M Innovative Properties Company Method and apparatus for inkjet printing using radiation curable ink
US7616341B2 (en) * 2004-07-12 2009-11-10 Toshiba Corporation System and method for metadata controlled multi-configured halftone screening
JP4375167B2 (ja) * 2004-08-27 2009-12-02 コニカミノルタホールディングス株式会社 画像形成装置、画像形成方法及び画像形成プログラム
US8208175B2 (en) * 2005-04-13 2012-06-26 Xerox Corporation Blended error diffusion and adaptive quantization
US7616347B2 (en) * 2005-04-29 2009-11-10 International Business Machines Corporation System and method for multi-bit halftoning
US7599097B2 (en) * 2005-06-10 2009-10-06 Infoprint Solutions Company Llc Method and system for designing multilevel halftone screens using spot functions
US7768673B2 (en) * 2005-09-12 2010-08-03 Kabushiki Kaisha Toshiba Generating multi-bit halftone dither patterns with distinct foreground and background gray scale levels
US20070058200A1 (en) * 2005-09-12 2007-03-15 Kabushiki Kaisha Toshiba System and method for generating multi-bit halftones using horizontal buildup
GB0711341D0 (en) 2007-06-12 2007-07-25 Ffei Ltd Multilevel screening
WO2009067107A1 (en) * 2007-11-20 2009-05-28 Hewlett-Packard Development Company, L.P. Dye-based gray ink formulations, methods of making dye-based gray ink formulations, and ink-jet ink sets
US8059311B2 (en) * 2008-01-31 2011-11-15 Sharp Laboratories Of America, Inc. Font and line art rendering for multi-bit output devices
US7911646B2 (en) * 2008-01-31 2011-03-22 Sharp Laboratories Of America, Inc. Multilevel halftoning for tint graphic, line art and text rendering
US9734440B2 (en) 2014-01-29 2017-08-15 Rampage Llc Raster image processor with printhead profile compensation for a multi level digital printing machine
EP3013028A1 (de) * 2014-10-07 2016-04-27 OCE-Technologies B.V. Mehrstufiges halbtonmodul mit nichtgleichförmigkeitskompensation

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149194A (en) * 1977-07-07 1979-04-10 Xerox Corporation Variable angle electronic halftone screening
JPS57120937A (en) * 1981-01-21 1982-07-28 Dainippon Screen Mfg Co Ltd Formation of halftone plate image
US4672432A (en) * 1983-04-28 1987-06-09 Canon Kabushiki Kaisha Method for recording a color image using dots of colorants of different densities
US5045952A (en) * 1989-08-21 1991-09-03 Xerox Corporation Method for edge enhanced error diffusion
US5196942A (en) * 1990-09-17 1993-03-23 Xerox Corporation System and method for determining picture element values
US5226094A (en) * 1990-10-19 1993-07-06 Xerox Corporation Method for making image conversions with error diffusion
US5444551A (en) * 1992-07-22 1995-08-22 Eastman Kodak Company Process for specifying mean-preserving mutli-level halftone matrices with varying amounts of modulation
US5542029A (en) * 1993-09-30 1996-07-30 Apple Computer, Inc. System and method for halftoning using an overlapping threshold array
DE69527675T2 (de) * 1994-04-27 2003-04-03 Agfa Gevaert Nv Mehrstufige Halbtonrasterung mit gruppierten Punkten und Linien für den elektrografischen Farbdruck
US5592592A (en) * 1994-07-01 1997-01-07 Seiko Epson Corporation Method and apparatus for minimizing artifacts in images produced by error diffusion halftoning utilizing ink reduction processing
US5742405A (en) * 1995-01-26 1998-04-21 Eastman Kodak Company Method and system for forming multi-level halftone images from an input digital image
US5777759A (en) * 1995-04-28 1998-07-07 Canon Kabushiki Kaisha Image processing method and apparatus
US5696612A (en) * 1995-05-04 1997-12-09 Polaroid Corporation Multiple density level stochastic screening system and method

Also Published As

Publication number Publication date
EP0889639A1 (de) 1999-01-07
EP0889639B1 (de) 2003-11-12
DE69819608T2 (de) 2004-05-13
US6014226A (en) 2000-01-11
JPH1141465A (ja) 1999-02-12

Similar Documents

Publication Publication Date Title
DE69819608D1 (de) Mehrpegelige Halbtonrasterung mit Rändern verringerter Textur und Deckungssteuerung
GB9608987D0 (en) Controlling cell growth and development
GB9608995D0 (en) Controlling cell growth and development
GB9608988D0 (en) Controlling cell growth and development
GB9608989D0 (en) Controlling cell growth and development
GB9608990D0 (en) Controlling cell growth and development
GB9608991D0 (en) Controlling cell growth and development
GB9608992D0 (en) Controlling cell growth and development
GB9608993D0 (en) Controlling cell growth and development
GB9608994D0 (en) Controlling cell growth and development
GB9608996D0 (en) Controlling cell growth and development
GB9608997D0 (en) Controlling cell growth and development
GB9608998D0 (en) Controlling cell growth and development
GB9608999D0 (en) Controlling cell growth and development
GB9609000D0 (en) Controlling cell growth and development
GB9609001D0 (en) Controlling cell growth and development
GB9609030D0 (en) Controlling cell growth and development
GB9609031D0 (en) Controlling cell growth and development
GB9609032D0 (en) Controlling cell growth and development
GB9609033D0 (en) Controlling cell growth and development
GB9609034D0 (en) Controlling cell growth and development
GB9609035D0 (en) Controlling cell growth and development
GB9609036D0 (en) Controlling cell growth and development
GB9609037D0 (en) Controlling cell growth and development
GB9609038D0 (en) Controlling cell growth and development

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee