DE69831463D1 - Bildverabeitungsverfahren und Drucker - Google Patents

Bildverabeitungsverfahren und Drucker

Info

Publication number
DE69831463D1
DE69831463D1 DE69831463T DE69831463T DE69831463D1 DE 69831463 D1 DE69831463 D1 DE 69831463D1 DE 69831463 T DE69831463 T DE 69831463T DE 69831463 T DE69831463 T DE 69831463T DE 69831463 D1 DE69831463 D1 DE 69831463D1
Authority
DE
Germany
Prior art keywords
printer
image processing
processing method
image
processing
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
DE69831463T
Other languages
English (en)
Other versions
DE69831463T2 (de
Inventor
Nobuhiko Nakahara
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.)
Toshiba TEC Corp
Original Assignee
Toshiba TEC 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 Toshiba TEC Corp filed Critical Toshiba TEC Corp
Application granted granted Critical
Publication of DE69831463D1 publication Critical patent/DE69831463D1/de
Publication of DE69831463T2 publication Critical patent/DE69831463T2/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
    • 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
    • H04N1/60—Colour correction or control
    • H04N1/6016—Conversion to subtractive colour signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Color, Gradation (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
  • Color Image Communication Systems (AREA)
DE69831463T 1997-10-17 1998-10-14 Bildverabeitungsverfahren und Drucker Expired - Fee Related DE69831463T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP28487697 1997-10-17
JP28487697 1997-10-17
JP27901398 1998-09-30
JP27901398A JP3974714B2 (ja) 1997-10-17 1998-09-30 画像処理方法

Publications (2)

Publication Number Publication Date
DE69831463D1 true DE69831463D1 (de) 2005-10-13
DE69831463T2 DE69831463T2 (de) 2006-01-19

Family

ID=26553140

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69831463T Expired - Fee Related DE69831463T2 (de) 1997-10-17 1998-10-14 Bildverabeitungsverfahren und Drucker

Country Status (6)

Country Link
US (1) US6021217A (de)
EP (1) EP0910205B1 (de)
JP (1) JP3974714B2 (de)
KR (1) KR100585243B1 (de)
CN (1) CN1168284C (de)
DE (1) DE69831463T2 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6437872B1 (en) * 1998-09-22 2002-08-20 Xerox Corporation Multibit screening of print documents in a PDL environment
US7164493B1 (en) * 1998-11-06 2007-01-16 Canon Kabushiki Kaisha Image processing method, system and apparatus, and storage medium
JP3974721B2 (ja) 1998-12-25 2007-09-12 東芝テック株式会社 画像処理方法及び画像処理装置
US7038797B1 (en) 1999-05-25 2006-05-02 Silverbrook Research Pty Ltd Method and system for delivery of mail
US6906825B1 (en) * 1999-06-14 2005-06-14 Toshiba Tec Kabushiki Kaisha Image processor and color image processor
US6714320B1 (en) * 1999-06-14 2004-03-30 Toshiba Tec Kabushiki Kaisha Image processor and color image processor
JP2001159848A (ja) * 1999-12-01 2001-06-12 Ricoh Co Ltd 画像形成装置
JP4424845B2 (ja) 1999-12-20 2010-03-03 本田 正 イメージデータ圧縮方法及び復元方法
EP1158484A3 (de) 2000-05-25 2008-12-31 Seiko Epson Corporation Verarbeitung von an ein Anzeigegerät gelieferten Bilddaten
WO2003028362A1 (en) * 2001-09-21 2003-04-03 Ricoh Company, Ltd. Threshold value matrix creating method, image output system, storage medium, gradation reproducing method, threshold value matrix, image processing method, image processing apparatus, image forming apparatus and printer driver
JP4409159B2 (ja) * 2002-10-22 2010-02-03 富士フイルム株式会社 デジタルプリントシステム及びデジタルプリント
JP4065532B2 (ja) * 2003-05-09 2008-03-26 キヤノン株式会社 画像処理装置、画像処理方法およびプログラム
JP2005167492A (ja) * 2003-12-01 2005-06-23 Fujitsu Ltd 印刷方法，印刷システム，印刷装置，２値化ディザマトリクスパターン，印刷プログラムおよび同プログラムを記録したコンピュータ読取可能な記録媒体
US7505176B2 (en) 2005-03-17 2009-03-17 Kabushiki Kaisha Toshiba Image processing apparatus
CN102157000A (zh) * 2010-11-30 2011-08-17 方正国际软件有限公司 一种调整版面浓淡的方法与系统
US8873106B2 (en) * 2013-03-08 2014-10-28 Xerox Corporation Method and system for enabling halftoning of a color image based on its color separation content
CN110569384B (zh) * 2019-09-09 2021-02-26 深圳市乐福衡器有限公司 Ai扫描方法
US10855881B1 (en) 2019-12-18 2020-12-01 Ricoh Company, Ltd. Vectorized multi-level halftoning using ternary logic

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4903123A (en) * 1987-06-10 1990-02-20 Canon Kabushiki Kaisha Image processing apparatus using inclined line screens to reduce Moire
EP0304289A3 (de) * 1987-08-18 1991-03-13 Kabushiki Kaisha Toshiba Halbtonbildreproduktionsverfahren und -Gerät
US5201013A (en) * 1989-04-24 1993-04-06 Ezel, Inc. Dither processing method
DE4124828A1 (de) * 1991-07-26 1993-01-28 Philips Patentverwaltung Verfahren zum ausgeben eines grautonbildes als pseudo-halbtonbild sowie anordnung zur durchfuehrung des verfahrens
US5438431A (en) * 1992-05-21 1995-08-01 Ostromoukhov; Victor B. Method and apparatus for generating digital halftone images using a rotated dispersed dither matrix
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
JPH06291994A (ja) * 1992-08-10 1994-10-18 Ricoh Co Ltd 画像処理方法および装置
US5422742A (en) * 1993-09-08 1995-06-06 Ostromoukhov; Victor B. Method and apparatus for generating halftone images by discrete one-to-one dither tile rotation
US5673144A (en) * 1994-09-14 1997-09-30 International Business Machines, Corporation Oblique viewing microscope system
EP0741486B1 (de) * 1995-05-05 2000-08-30 Agfa-Gevaert N.V. Moiréfreie Multipegelhalbtonerzeugung für Farbbilder

Also Published As

Publication number Publication date
CN1168284C (zh) 2004-09-22
DE69831463T2 (de) 2006-01-19
US6021217A (en) 2000-02-01
KR19990037149A (ko) 1999-05-25
EP0910205A2 (de) 1999-04-21
CN1223419A (zh) 1999-07-21
KR100585243B1 (ko) 2006-10-25
JP3974714B2 (ja) 2007-09-12
JPH11187265A (ja) 1999-07-09
EP0910205A3 (de) 2002-06-05
EP0910205B1 (de) 2005-09-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee