DE3201373C2 - Verfahren zur optisch-elektronischen Rasterreproduktion - Google Patents

Verfahren zur optisch-elektronischen Rasterreproduktion

Info

Publication number
DE3201373C2
DE3201373C2 DE3201373A DE3201373A DE3201373C2 DE 3201373 C2 DE3201373 C2 DE 3201373C2 DE 3201373 A DE3201373 A DE 3201373A DE 3201373 A DE3201373 A DE 3201373A DE 3201373 C2 DE3201373 C2 DE 3201373C2
Authority
DE
Germany
Prior art keywords
raster
signal
values
digital
comparators
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
Application number
DE3201373A
Other languages
German (de)
English (en)
Other versions
DE3201373A1 (de
Inventor
Takashi Kyoto Sakamoto
Tetsuo Sano
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.)
Dainippon Screen Manufacturing Co Ltd
Original Assignee
Dainippon Screen Manufacturing Co Ltd
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 Dainippon Screen Manufacturing Co Ltd filed Critical Dainippon Screen Manufacturing Co Ltd
Publication of DE3201373A1 publication Critical patent/DE3201373A1/de
Application granted granted Critical
Publication of DE3201373C2 publication Critical patent/DE3201373C2/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H04N1/40081—Soft dot halftoning, i.e. producing halftone dots with gradual edges
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • Image Processing (AREA)
DE3201373A 1981-01-21 1982-01-19 Verfahren zur optisch-elektronischen Rasterreproduktion Expired DE3201373C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56006307A JPS57120937A (en) 1981-01-21 1981-01-21 Formation of halftone plate image

Publications (2)

Publication Number Publication Date
DE3201373A1 DE3201373A1 (de) 1982-08-05
DE3201373C2 true DE3201373C2 (de) 1987-03-12

Family

ID=11634709

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3201373A Expired DE3201373C2 (de) 1981-01-21 1982-01-19 Verfahren zur optisch-elektronischen Rasterreproduktion

Country Status (7)

Country Link
US (1) US4447833A ( )
JP (1) JPS57120937A ( )
KR (1) KR850001970B1 ( )
DE (1) DE3201373C2 ( )
FR (1) FR2498345A1 ( )
GB (1) GB2091518B ( )
IL (1) IL64749A0 ( )

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58114570A (ja) * 1981-12-26 1983-07-07 Canon Inc 画像処理装置
GB2127646B (en) * 1982-08-18 1987-03-25 Matsushita Electric Ind Co Ltd Image processor
JPS5978353A (ja) * 1982-10-28 1984-05-07 Dainippon Screen Mfg Co Ltd 網目版画像記録装置における網点形成方法
US4727434A (en) * 1984-03-14 1988-02-23 Canon Kabushiki Kaisha Image processing apparatus for rapid production of a hard copy of a video image in which input image signal processing parameters are set while a record medium is being positioned at a recording position
US5144687A (en) * 1985-03-02 1992-09-01 Kabushika Kaisha Toshiba Image processing apparatus including spatial shift variant filter
JPS6258779A (ja) * 1985-09-06 1987-03-14 Dainippon Screen Mfg Co Ltd 網目版画像記録装置
GB8628238D0 (en) * 1986-11-26 1986-12-31 Crosfield Electronics Ltd Generating half-tone representations
US4985779A (en) * 1989-09-19 1991-01-15 Intergraph Corporation Improved method and apparatus for generating halftone images
GB9008318D0 (en) * 1990-04-12 1990-06-13 Crosfield Electronics Ltd Methods and apparatus for half-tone imaging
US5140431A (en) * 1990-12-31 1992-08-18 E. I. Du Pont De Nemours And Company Digital electronic system for halftone printing
US5473733A (en) * 1992-03-25 1995-12-05 Scitex Corporation Ltd. Technique for generating image reproduction
EP0642258B1 (en) * 1993-09-02 1997-11-12 Agfa-Gevaert N.V. Method for generating a frequency modulated halftone image
US5777759A (en) * 1995-04-28 1998-07-07 Canon Kabushiki Kaisha Image processing method and apparatus
EP0741486B1 (en) * 1995-05-05 2000-08-30 Agfa-Gevaert N.V. Moiré free multilevel halftoning of color images
US6014226A (en) * 1997-07-01 2000-01-11 Xerox Corporation Multilevel halftoning with reduced texture contours and coverage control
DE10022225B4 (de) * 2000-05-08 2015-12-17 Heidelberger Druckmaschinen Ag Mehrstufen-Rasterung mit Rastern beliebiger Rasterweiten und Rasterwinkel
EP1369230A1 (en) * 2002-06-05 2003-12-10 Kba-Giori S.A. Method of manufacturing an engraved plate
US7589868B2 (en) * 2002-12-11 2009-09-15 Agfa Graphics Nv Method and apparatus for creating 3D-prints and a 3-D printing system
DE60239551D1 (de) * 2002-12-11 2011-05-05 Agfa Graphics Nv Verfahren zur Erzeugung von 3D-Ausdrucken
EP2018040A1 (en) * 2007-07-19 2009-01-21 Hewlett-Packard Development Company, L.P. Contouring reduction in halftoning

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1482522A (en) * 1973-10-02 1977-08-10 Crosfield Electronics Ltd Exposing scanners for image reproduction
US3961132A (en) * 1974-07-15 1976-06-01 Log Etronics Inc. Sequential image-modulated dot-area recording
US4051536A (en) * 1975-03-14 1977-09-27 Xerox Corporation Electronic halftone imaging system
DE2827596C2 (de) * 1978-06-23 1984-11-22 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Verfahren und Anordnung zur Herstellung gerasterter Druckformen
US4196453A (en) * 1978-12-01 1980-04-01 Xerox Corporation Image screening system
DE3176685D1 (en) * 1980-09-01 1988-04-21 Crosfield Electronics Ltd A method of producing a half-tone reproduction

Also Published As

Publication number Publication date
KR830009840A (ko) 1983-12-23
KR850001970B1 (ko) 1985-12-31
FR2498345A1 (fr) 1982-07-23
US4447833A (en) 1984-05-08
GB2091518A (en) 1982-07-28
GB2091518B (en) 1985-02-06
DE3201373A1 (de) 1982-08-05
JPS57120937A (en) 1982-07-28
IL64749A0 (en) 1982-03-31
JPS6235304B2 ( ) 1987-07-31

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee