DE69129675T2 - Bildverarbeitungsvorrichtung - Google Patents

Bildverarbeitungsvorrichtung

Info

Publication number
DE69129675T2
DE69129675T2 DE69129675T DE69129675T DE69129675T2 DE 69129675 T2 DE69129675 T2 DE 69129675T2 DE 69129675 T DE69129675 T DE 69129675T DE 69129675 T DE69129675 T DE 69129675T DE 69129675 T2 DE69129675 T2 DE 69129675T2
Authority
DE
Germany
Prior art keywords
image processing
processing device
image
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
DE69129675T
Other languages
English (en)
Other versions
DE69129675D1 (de
Inventor
Takashi Kawana
Tetsuo Saito
Hiroshi Mano
Kiyoshi Kanaiwa
Kaoru Seto
Atsushi Kashihara
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.)
Canon Inc
Original Assignee
Canon Inc
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
Priority claimed from JP2109329A external-priority patent/JPH047173A/ja
Priority claimed from JP3006273A external-priority patent/JPH04238460A/ja
Application filed by Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of DE69129675D1 publication Critical patent/DE69129675D1/de
Publication of DE69129675T2 publication Critical patent/DE69129675T2/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
    • H04N1/40068—Modification of image resolution, i.e. determining the values of picture elements at new relative positions

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color, Gradation (AREA)
  • Dot-Matrix Printers And Others (AREA)
DE69129675T 1990-04-25 1991-04-24 Bildverarbeitungsvorrichtung Expired - Fee Related DE69129675T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2109329A JPH047173A (ja) 1990-04-25 1990-04-25 記録装置
JP3006273A JPH04238460A (ja) 1991-01-23 1991-01-23 記録装置

Publications (2)

Publication Number Publication Date
DE69129675D1 DE69129675D1 (de) 1998-08-06
DE69129675T2 true DE69129675T2 (de) 1999-01-07

Family

ID=26340370

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69129675T Expired - Fee Related DE69129675T2 (de) 1990-04-25 1991-04-24 Bildverarbeitungsvorrichtung

Country Status (3)

Country Link
US (1) US5386302A (de)
EP (1) EP0454088B1 (de)
DE (1) DE69129675T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5696853A (en) * 1992-02-28 1997-12-09 Canon Kabushiki Kaisha Image processing system having variably controllable pixel density patterns
US5973709A (en) * 1992-06-24 1999-10-26 Oki Electric Industry Co., Ltd. Printer and process for printing different size dots by setting drive energies based on adjacent data bit logic
JP3703162B2 (ja) * 1994-04-22 2005-10-05 キヤノン株式会社 画像形成装置
US7031020B1 (en) * 1994-04-22 2006-04-18 Canon Kabushiki Kaisha Image processing method, apparatus and controller
JP3618912B2 (ja) 1996-07-12 2005-02-09 キヤノン株式会社 画像形成装置
US7280246B2 (en) * 2003-02-12 2007-10-09 Marvell International Technology Ltd. Laser print apparatus that generates pulse width value and justification value based on pixels in a multi-bit image
US20050168783A1 (en) * 2004-01-29 2005-08-04 Spencer Thomas High resolution image compositing as a solution for digital preservation
US20070269123A1 (en) * 2006-05-16 2007-11-22 Randall Don Briggs Method and apparatus for performing image enhancement in an image processing pipeline
JP4795473B2 (ja) * 2009-06-29 2011-10-19 キヤノン株式会社 画像処理装置及びその制御方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4528693A (en) * 1982-09-30 1985-07-09 International Business Machines Corporation Apparatus and method for scaling facsimile image data
US4468704A (en) * 1982-10-28 1984-08-28 Xerox Corporation Adaptive thresholder
JPS6123468A (ja) * 1984-07-11 1986-01-31 Nippon Telegr & Teleph Corp <Ntt> 画像処理装置
DE3688715D1 (de) * 1985-03-30 1993-08-26 Hitachi Ltd Druckverfahren vom abtastaufzeichnungstyp und dessen verwirklichungsvorrichtung.
EP0213891B1 (de) * 1985-08-20 1993-10-27 Canon Kabushiki Kaisha Bildverarbeitungsgerät
US4870499A (en) * 1985-08-29 1989-09-26 Canon Kabushiki Kaisha Image processing apparatus
US4899225A (en) * 1987-12-31 1990-02-06 Fuji Xerox Co., Ltd. Image processing method

Also Published As

Publication number Publication date
EP0454088A2 (de) 1991-10-30
EP0454088A3 (en) 1992-07-22
US5386302A (en) 1995-01-31
EP0454088B1 (de) 1998-07-01
DE69129675D1 (de) 1998-08-06

Similar Documents

Publication Publication Date Title
DE69133366D1 (de) Bildverarbeitungsvorrichtung
DE69127427T2 (de) Bildverarbeitungsvorrichtung
DE69129244D1 (de) Bildverarbeitungsgerät
DE69216129D1 (de) Bildverarbeitungsgerät
DE69217403T2 (de) Bildverarbeitungsgerät
DE69125414T2 (de) Bildverarbeitungsgerät
DE69209540T2 (de) Bildverarbeitungsgerät
DE69216898T2 (de) Bildverarbeitungsgerät
DE69126457T2 (de) Bildverarbeitungsvorrichtung
DE69132933D1 (de) Bildverarbeitungsgerät
DE69128733T2 (de) Bildverarbeitungsgerät
DE69212192D1 (de) Bildverarbeitungsgerät
DE69128211D1 (de) Bildverarbeitungsvorrichtung
DE69126852D1 (de) Bildverarbeitungsgerät
DE69130552T2 (de) Bildverarbeitungsgerät
DE69123196D1 (de) Bildverarbeitungsgerät
DE69216256D1 (de) Bildverarbeitungsgerät
DE69212035T2 (de) Bildverarbeitungsgerät
DE69129675T2 (de) Bildverarbeitungsvorrichtung
DE69125763D1 (de) Bildverarbeitungsgerät
DE69124290D1 (de) Bildverarbeitungsgerät
DE69214197T2 (de) Bildverarbeitungsgerät
DE69208906D1 (de) Bildverarbeitungsgerät
DE69129686T2 (de) Bildverarbeitungsgerät
DE69130884T2 (de) Bildverarbeitungsgerät

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee