DE69126078T2 - Elektronisches Farbrastersystem mit farbabhängigen trigonometrischen Funktionen - Google Patents

Elektronisches Farbrastersystem mit farbabhängigen trigonometrischen Funktionen

Info

Publication number
DE69126078T2
DE69126078T2 DE69126078T DE69126078T DE69126078T2 DE 69126078 T2 DE69126078 T2 DE 69126078T2 DE 69126078 T DE69126078 T DE 69126078T DE 69126078 T DE69126078 T DE 69126078T DE 69126078 T2 DE69126078 T2 DE 69126078T2
Authority
DE
Germany
Prior art keywords
color
screen system
trigonometric functions
electronic
dependent
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
DE69126078T
Other languages
English (en)
Other versions
DE69126078D1 (de
Inventor
Mitsuo Kaji
Miki Ishihara
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE69126078D1 publication Critical patent/DE69126078D1/de
Publication of DE69126078T2 publication Critical patent/DE69126078T2/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
    • H04N1/46—Colour picture communication systems
    • H04N1/52—Circuits or arrangements for halftone screening
    • 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)
  • Facsimile Image Signal Circuits (AREA)
  • Color Image Communication Systems (AREA)
  • Image Processing (AREA)
DE69126078T 1990-09-21 1991-09-20 Elektronisches Farbrastersystem mit farbabhängigen trigonometrischen Funktionen Expired - Fee Related DE69126078T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2252342A JPH07110044B2 (ja) 1990-09-21 1990-09-21 ハーフトーン作成装置

Publications (2)

Publication Number Publication Date
DE69126078D1 DE69126078D1 (de) 1997-06-19
DE69126078T2 true DE69126078T2 (de) 1998-01-22

Family

ID=17235945

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69126078T Expired - Fee Related DE69126078T2 (de) 1990-09-21 1991-09-20 Elektronisches Farbrastersystem mit farbabhängigen trigonometrischen Funktionen

Country Status (4)

Country Link
US (1) US5249042A (de)
EP (1) EP0476695B1 (de)
JP (1) JPH07110044B2 (de)
DE (1) DE69126078T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6771324B1 (en) 1998-03-26 2004-08-03 Hitachi, Ltd. Display and apparatus
JP2001219599A (ja) * 2000-02-10 2001-08-14 Alps Electric Co Ltd 画像形成方法
US6930810B1 (en) * 2000-11-28 2005-08-16 Kabushiki Kaisha Toshiba Correction table forming method and image forming apparatus
US20050254071A1 (en) * 2004-05-13 2005-11-17 Jun He Image rescaling method
CA2509966A1 (en) * 2005-06-01 2006-12-01 Accent Manufacturing, Inc. Internally fed rotary screen manure separator

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084183A (en) * 1970-03-18 1978-04-11 Dr. Ing. Rudolf Hell Gmbh. Method for the electro-optical reproduction of half-tone pictures
DE2903062A1 (de) * 1979-01-26 1980-08-07 Mohn Gmbh Reinhard Verfahren zur herstellung von rasterauszuegen
US4507685A (en) * 1982-06-25 1985-03-26 Canon Kabushiki Kaisha Image recording device
US4884080A (en) * 1985-01-31 1989-11-28 Kabushiki Kaisha Toshiba Color image printing apparatus
JPS61186077A (ja) * 1985-02-13 1986-08-19 Fuji Xerox Co Ltd 画像記録装置
JPS61206368A (ja) * 1985-03-11 1986-09-12 Dainippon Printing Co Ltd カラ−画像デ−タの濃淡２値変換方法
JPH01231473A (ja) * 1988-03-10 1989-09-14 Brother Ind Ltd 画像形成方法
JPH0691621B2 (ja) * 1988-11-24 1994-11-14 大日本スクリーン製造株式会社 網目版画像記録方法および装置

Also Published As

Publication number Publication date
EP0476695B1 (de) 1997-05-14
JPH04130861A (ja) 1992-05-01
EP0476695A2 (de) 1992-03-25
JPH07110044B2 (ja) 1995-11-22
DE69126078D1 (de) 1997-06-19
US5249042A (en) 1993-09-28
EP0476695A3 (en) 1992-12-23

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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