DE69023914D1 - Verfahren und vorrichtung zur erzeugung gerasterter halbtonbilder. - Google Patents

Verfahren und vorrichtung zur erzeugung gerasterter halbtonbilder.

Info

Publication number
DE69023914D1
DE69023914D1 DE69023914T DE69023914T DE69023914D1 DE 69023914 D1 DE69023914 D1 DE 69023914D1 DE 69023914 T DE69023914 T DE 69023914T DE 69023914 T DE69023914 T DE 69023914T DE 69023914 D1 DE69023914 D1 DE 69023914D1
Authority
DE
Germany
Prior art keywords
halftone images
screened halftone
generating
generating screened
images
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
DE69023914T
Other languages
English (en)
Other versions
DE69023914T2 (de
Inventor
Winrich Gall
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.)
Intergraph Corp
Original Assignee
Intergraph 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 Intergraph Corp filed Critical Intergraph Corp
Application granted granted Critical
Publication of DE69023914D1 publication Critical patent/DE69023914D1/de
Publication of DE69023914T2 publication Critical patent/DE69023914T2/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
    • H04N1/40—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)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
DE69023914T 1989-09-19 1990-09-18 Verfahren und vorrichtung zur erzeugung gerasterter halbtonbilder. Expired - Fee Related DE69023914T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/409,114 US4985779A (en) 1989-09-19 1989-09-19 Improved method and apparatus for generating halftone images
PCT/US1990/005310 WO1991004631A1 (en) 1989-09-19 1990-09-18 Improved method and apparatus for generating halftone images

Publications (2)

Publication Number Publication Date
DE69023914D1 true DE69023914D1 (de) 1996-01-11
DE69023914T2 DE69023914T2 (de) 1996-06-05

Family

ID=23619102

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69023914T Expired - Fee Related DE69023914T2 (de) 1989-09-19 1990-09-18 Verfahren und vorrichtung zur erzeugung gerasterter halbtonbilder.

Country Status (6)

Country Link
US (1) US4985779A (de)
EP (1) EP0493445B1 (de)
JP (1) JPH05500589A (de)
DE (1) DE69023914T2 (de)
ES (1) ES2082002T3 (de)
WO (1) WO1991004631A1 (de)

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DK87287A (da) 1986-02-20 1987-08-21 Raychem Corp Fremgangsmaade og apparat for anvendelse af ionbyttemateriale
US5235435A (en) * 1989-11-08 1993-08-10 Adobe Systems Incorporated Method of producing halftone images
JP2774627B2 (ja) * 1989-12-28 1998-07-09 株式会社日立製作所 画像表示方法及びその装置
JP2804598B2 (ja) * 1990-04-23 1998-09-30 三洋電機株式会社 熱転写記録の印写濃度制御方法
GB9009406D0 (en) * 1990-04-26 1990-06-20 Zed Instr Ltd Printing cylinder engraving
JPH04126462A (ja) * 1990-09-18 1992-04-27 Canon Inc 画像形成装置
EP0514504B1 (de) * 1990-11-21 1997-04-23 Polaroid Corporation Druckverfahren
US5221971A (en) * 1990-11-21 1993-06-22 Polaroid Corporation Area modulation printing apparatus
JP2684454B2 (ja) * 1990-11-29 1997-12-03 キヤノン株式会社 濃度設定方法
JPH04261264A (ja) * 1991-02-15 1992-09-17 Victor Co Of Japan Ltd パルス幅変調装置
EP0505323B2 (de) * 1991-03-21 2001-11-07 Maschinenfabrik Wifag Verfahren zur Einstellung der Rasterpunktgrössen für eine Offset-Rotationsdruckmaschine
US5291214A (en) * 1991-07-01 1994-03-01 Eastman Kodak Company Method and apparatus for scanning a receiving medium
US5204916A (en) * 1991-08-06 1993-04-20 Eastman Kodak Company Tile-oriented technique for collectively performing image rotation, scaling and digital halftone screening
US5276535A (en) * 1991-12-24 1994-01-04 Levien Raphael L Method and apparatus for halftoning of images using grayscale error diffusion
JPH077624A (ja) * 1991-09-09 1995-01-10 Mitsubishi Paper Mills Ltd 網点画像記録方法
US5331429A (en) * 1992-02-07 1994-07-19 Levien Raphael L Digital generation of halftone images with error diffusion and frequency matched periodic screen rulings
US5473733A (en) * 1992-03-25 1995-12-05 Scitex Corporation Ltd. Technique for generating image reproduction
US5291311A (en) * 1992-06-29 1994-03-01 Eastman Kodak Company Apparatus and method for generating multi-level output values for pixels in a halftone cell
US5997122A (en) * 1992-06-30 1999-12-07 Canon Kabushiki Kaisha Ink jet recording apparatus capable of performing liquid droplet diameter random variable recording and ink jet recording method using ink for liquid droplet random variable recording
JP2986292B2 (ja) * 1992-07-10 1999-12-06 大日本スクリーン製造株式会社 網点形成方法および装置
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
US5463720A (en) * 1992-09-28 1995-10-31 Granger; Edward M. Blue noise based technique for use in a halftone tile oriented screener for masking screener induced image artifacts
EP0677948B1 (de) * 1993-02-10 1998-08-26 Océ Printing Systems GmbH Anordnung zur Erzeugung von Rasterdruck hoher Qualität mit einer elektrofotografischen Druckeinrichtung
IL105343A (en) * 1993-04-08 1997-02-18 Scitex Corp Ltd Apparatus and technique for generating a screen reproduction of an image
US5742743A (en) * 1993-04-08 1998-04-21 Scitex Corporation Ltd. Apparatus and method for generating a screen reproduction of a color image including dot shape rotation
JPH06340094A (ja) * 1993-05-31 1994-12-13 Canon Inc インクジェット記録装置およびインクジェット記録方法
US5579044A (en) * 1993-08-20 1996-11-26 Intergraph Corporation Digital proofing system
US5410414A (en) * 1993-10-28 1995-04-25 Xerox Corporation Halftoning in a hyperacuity printer
US5537223A (en) * 1994-06-02 1996-07-16 Xerox Corporation Rotating non-rotationally symmetrical halftone dots for encoding embedded data in a hyperacuity printer
US5648801A (en) * 1994-12-16 1997-07-15 International Business Machines Corporation Grayscale printing system
DE69518626T2 (de) * 1995-05-05 2001-05-03 Agfa Gevaert Nv Moirefreie Multipegelhalbtonerzeugung für Farbbilder
JP3426851B2 (ja) * 1996-04-30 2003-07-14 大日本スクリーン製造株式会社 多色印刷用網点形成方法
US5764381A (en) * 1996-07-10 1998-06-09 Scitex Corporation Ltd. Internal drum recorder with array imaging
US6185313B1 (en) * 1998-07-30 2001-02-06 Eastman Kodak Company Method and apparatus for printing copy restrictive documents having individual keycodes
DE10022225B4 (de) * 2000-05-08 2015-12-17 Heidelberger Druckmaschinen Ag Mehrstufen-Rasterung mit Rastern beliebiger Rasterweiten und Rasterwinkel
US6982814B1 (en) * 2000-08-23 2006-01-03 Hewlett-Packard Development Company, L.P. Image printing devices with AM/FM half-toning with self-determination of dot size and method of implementing same

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2262824C3 (de) * 1972-12-22 1975-07-10 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Verfahren zur gerasterten Reproduktion farbiger Halbtonbilder im Ein- oder Mehrfarbendruck
DE2302691C3 (de) * 1973-01-19 1979-07-26 Siemens Ag, 1000 Berlin Und 8000 Muenchen Röntgendiagnostikanlage zur Anfertigung röntgenologischer Serienaufnahmen mit einer von einem Rechner und einer Steuervorrichtung gesteuerten Anzeigeeinrichtung für die eingestellte Seriendauer
GB1549714A (en) * 1975-05-12 1979-08-08 Ecrm Making halftone reproductions
US4149183A (en) * 1976-05-21 1979-04-10 Xerox Corporation Electronic halftone generator
US4456924A (en) * 1980-04-14 1984-06-26 Scitex Corporation Ltd. Screened image reproduction
US4350996A (en) * 1980-04-14 1982-09-21 Scitex Corporation Ltd. Screened image reproduction
DE3176685D1 (en) * 1980-09-01 1988-04-21 Crosfield Electronics Ltd A method of producing a half-tone reproduction
US4449150A (en) * 1981-01-19 1984-05-15 Ricoh Company, Ltd. Method of processing medium tone picture
JPS57120937A (en) * 1981-01-21 1982-07-28 Dainippon Screen Mfg Co Ltd Formation of halftone plate image
JPS57160264A (en) * 1981-03-30 1982-10-02 Canon Inc Recorder of half tone picture
JPS57171337A (en) * 1981-04-14 1982-10-21 Dainippon Screen Mfg Co Ltd Production of halftone plate picture
US4499489A (en) * 1981-06-08 1985-02-12 Dr. Ing. Rudolf Hell Gmbh Production of screen printing blocks
US4413286A (en) * 1981-08-24 1983-11-01 Optronics International, Inc. Method and apparatus involving digital screen generation
CH655374A5 (de) * 1982-04-29 1986-04-15 Fischer Ag Georg Anschluss-formstueck.
EP0141869B1 (de) * 1983-11-14 1987-09-16 DR.-ING. RUDOLF HELL GmbH Verfahren und Einrichtung zur Herstellung gerasterter Druckformen
JPH0657049B2 (ja) * 1984-12-07 1994-07-27 大日本スクリ−ン製造株式会社 網点形成方法
JPH0793681B2 (ja) * 1986-03-31 1995-10-09 株式会社東芝 多階調記録方法
US4724446A (en) * 1985-01-31 1988-02-09 Kabushiki Kaisha Toshiba Thermal transfer printing apparatus
JPS61285867A (ja) * 1985-06-12 1986-12-16 Dainippon Screen Mfg Co Ltd 網点画像記録方法並びに装置
US4707709A (en) * 1986-01-17 1987-11-17 Eastman Kodak Company Image recording apparatus in which exposure levels are a function of image contents
EP0292292B1 (de) * 1987-05-20 1993-10-06 Canon Kabushiki Kaisha Bilderzeugungsgerät
JPH0626440B2 (ja) * 1987-05-26 1994-04-06 大日本スクリ−ン製造株式会社 網点作成装置
JPH022042A (ja) * 1987-12-18 1990-01-08 Contex Graphic Syst Inc 中間色印字システム

Also Published As

Publication number Publication date
EP0493445A1 (de) 1992-07-08
US4985779A (en) 1991-01-15
ES2082002T3 (es) 1996-03-16
DE69023914T2 (de) 1996-06-05
EP0493445B1 (de) 1995-11-29
JPH05500589A (ja) 1993-02-04
WO1991004631A1 (en) 1991-04-04

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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