DE3789774D1 - Verfahren zur Erzeugung eines Halbtonrasters. - Google Patents

Verfahren zur Erzeugung eines Halbtonrasters.

Info

Publication number
DE3789774D1
DE3789774D1 DE3789774T DE3789774T DE3789774D1 DE 3789774 D1 DE3789774 D1 DE 3789774D1 DE 3789774 T DE3789774 T DE 3789774T DE 3789774 T DE3789774 T DE 3789774T DE 3789774 D1 DE3789774 D1 DE 3789774D1
Authority
DE
Germany
Prior art keywords
creating
halftone screen
halftone
screen
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 - Lifetime
Application number
DE3789774T
Other languages
English (en)
Other versions
DE3789774T2 (de
Inventor
Masahiro Fuji Photo Film Inoda
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Application granted granted Critical
Publication of DE3789774D1 publication Critical patent/DE3789774D1/de
Publication of DE3789774T2 publication Critical patent/DE3789774T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04N1/405—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S359/00—Optical: systems and elements
    • Y10S359/90—Methods

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color Image Communication Systems (AREA)
DE3789774T 1986-02-14 1987-02-12 Verfahren zur Erzeugung eines Halbtonrasters. Expired - Lifetime DE3789774T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61030198A JPH0683374B2 (ja) 1986-02-14 1986-02-14 網点画像の形成方法

Publications (2)

Publication Number Publication Date
DE3789774D1 true DE3789774D1 (de) 1994-06-16
DE3789774T2 DE3789774T2 (de) 1994-08-18

Family

ID=12297048

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3789774T Expired - Lifetime DE3789774T2 (de) 1986-02-14 1987-02-12 Verfahren zur Erzeugung eines Halbtonrasters.

Country Status (4)

Country Link
US (1) US4773734A (de)
EP (1) EP0235631B1 (de)
JP (1) JPH0683374B2 (de)
DE (1) DE3789774T2 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5172248A (en) * 1988-05-18 1992-12-15 Fuji Photo Film Co., Ltd. Method for forming halftone screen and apparatus therefor
JP2578947B2 (ja) * 1988-10-13 1997-02-05 富士写真フイルム株式会社 網点データ作成方法
JPH0691620B2 (ja) * 1988-11-15 1994-11-14 大日本スクリーン製造株式会社 カラー画像の網目版画像記録方法
US5258832A (en) * 1990-09-14 1993-11-02 Minnesota Mining And Manufacturing Company Non-perpendicular, unequal frequency non-conventional screen patterns for electronic halftone generation
US5253084A (en) * 1990-09-14 1993-10-12 Minnesota Mining And Manufacturing Company General kernel function for electronic halftone generation
US5583660A (en) * 1990-09-14 1996-12-10 Minnesota Mining And Manufacturing Company Non-perpendicular, equal frequency non-conventional screen patterns for electronic halftone generation
US5264926A (en) * 1990-09-14 1993-11-23 Minnesota Mining And Manufacturing Company Perpendicular, equal frequency non-conventional screen patterns for electronic halftone generation
US5323245A (en) * 1990-09-14 1994-06-21 Minnesota Mining And Manufacturing Company Perpendicular, unequal frequency non-conventional screen patterns for electronic halftone generation
US5359424A (en) * 1991-06-05 1994-10-25 Seiko Epson Corporation Thermal transfer image forming apparatus using different gamma functions for different density ranges
JP3917200B2 (ja) * 1995-05-23 2007-05-23 富士フイルム株式会社 網点閾値設定方法および２値データ作成装置
US6879733B2 (en) * 2001-01-18 2005-04-12 Seiko Epson Corporation Image artifact removal technique for LCP
US6879734B2 (en) * 2001-01-18 2005-04-12 Seiko Epson Corporation Memory efficient image artifact removal technique for LCP

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1901101A1 (de) * 1969-01-10 1970-10-29 Hell Rudolf Dr Ing Fa Verfahren zur punkt- und zeilenweisen gerasterten Aufzeichnung der durch Abtastung von Halbtonbildern gewonnenen Bildsignale mit gegen die Aufzeichnungsrichtung gedrehtem Raster
US3675948A (en) * 1969-09-10 1972-07-11 American Bank Note Co Printing method and article for hiding halftone images
DE2012728C3 (de) * 1970-03-18 1974-09-19 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Verfahren zur elektrooptischen Aufzeichnung von gerasterten Halbtonbildern
GB1549714A (en) * 1975-05-12 1979-08-08 Ecrm Making halftone reproductions
US4185304A (en) * 1977-07-07 1980-01-22 Xerox Corporation Electronic halftone screening
JPS579061A (en) * 1980-06-17 1982-01-18 Matsushita Electric Ind Co Ltd Manufacture of positive active material for nonaqueous battery
JPS57171337A (en) * 1981-04-14 1982-10-21 Dainippon Screen Mfg Co Ltd Production of halftone plate picture
JPS5880639A (ja) * 1981-11-07 1983-05-14 Dainippon Screen Mfg Co Ltd 網目版画像の記録方法
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
GB8401933D0 (en) * 1984-01-25 1984-02-29 Crosfield Electronics Ltd Half-tone imaging

Also Published As

Publication number Publication date
EP0235631A3 (en) 1990-02-07
JPS62188564A (ja) 1987-08-18
JPH0683374B2 (ja) 1994-10-19
DE3789774T2 (de) 1994-08-18
US4773734A (en) 1988-09-27
EP0235631A2 (de) 1987-09-09
EP0235631B1 (de) 1994-05-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition