DE69218151T2 - Bildverarbeitungseinheit - Google Patents

Bildverarbeitungseinheit

Info

Publication number
DE69218151T2
DE69218151T2 DE69218151T DE69218151T DE69218151T2 DE 69218151 T2 DE69218151 T2 DE 69218151T2 DE 69218151 T DE69218151 T DE 69218151T DE 69218151 T DE69218151 T DE 69218151T DE 69218151 T2 DE69218151 T2 DE 69218151T2
Authority
DE
Germany
Prior art keywords
processing unit
image processing
image
unit
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
DE69218151T
Other languages
English (en)
Other versions
DE69218151D1 (de
Inventor
Yutaka Tamura
Shinji Shiraishi
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 DE69218151D1 publication Critical patent/DE69218151D1/de
Application granted granted Critical
Publication of DE69218151T2 publication Critical patent/DE69218151T2/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
    • 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
    • H04N1/409—Edge or detail enhancement; Noise or error suppression
    • H04N1/4092—Edge or detail enhancement

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
DE69218151T 1991-12-27 1992-12-22 Bildverarbeitungseinheit Expired - Fee Related DE69218151T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3359107A JP2584560B2 (ja) 1991-12-27 1991-12-27 画像処理装置

Publications (2)

Publication Number Publication Date
DE69218151D1 DE69218151D1 (de) 1997-04-17
DE69218151T2 true DE69218151T2 (de) 1997-10-09

Family

ID=18462783

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69218151T Expired - Fee Related DE69218151T2 (de) 1991-12-27 1992-12-22 Bildverarbeitungseinheit

Country Status (4)

Country Link
US (1) US5430557A (de)
EP (1) EP0548921B1 (de)
JP (1) JP2584560B2 (de)
DE (1) DE69218151T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000138833A (ja) * 1998-08-28 2000-05-16 Toshiba Tec Corp 画像処理方法及び画像処理装置
US7003152B1 (en) * 1999-01-20 2006-02-21 Konica Minolta Business Technologies, Inc. Image processing apparatus
TWI228240B (en) * 2003-11-25 2005-02-21 Benq Corp Image processing method for reducing jaggy-effect
US8610965B2 (en) * 2007-11-26 2013-12-17 Optelec Development B.V. Reproduction device, assembly of a reproductive device and an indication body, and a method for reproducing an image portion

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4547814A (en) * 1982-12-06 1985-10-15 Dainippon Screen Seizo Kabushiki Kaisha Method of recording a halftone picture electronically
US4782398A (en) * 1986-02-14 1988-11-01 Canon Kabushiki Kaisha Image processing apparatus
JP2589295B2 (ja) * 1986-11-14 1997-03-12 キヤノン株式会社 画像形成装置
US4860118A (en) * 1987-02-25 1989-08-22 Canon Kabushiki Kaisha Image signal processing apparatus with edge emphasis and variable magnification
US4958218A (en) * 1987-12-16 1990-09-18 Canon Kabushiki Kaisha Image processing method and apparatus with dot-processing
EP0411911B1 (de) * 1989-08-02 1996-03-27 Canon Kabushiki Kaisha Bildverarbeitungsgerät

Also Published As

Publication number Publication date
DE69218151D1 (de) 1997-04-17
US5430557A (en) 1995-07-04
JPH05183747A (ja) 1993-07-23
EP0548921B1 (de) 1997-03-12
EP0548921A1 (de) 1993-06-30
JP2584560B2 (ja) 1997-02-26

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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