DE69133449D1 - Farbbildverarbeitungsgerät - Google Patents

Farbbildverarbeitungsgerät

Info

Publication number
DE69133449D1
DE69133449D1 DE69133449T DE69133449T DE69133449D1 DE 69133449 D1 DE69133449 D1 DE 69133449D1 DE 69133449 T DE69133449 T DE 69133449T DE 69133449 T DE69133449 T DE 69133449T DE 69133449 D1 DE69133449 D1 DE 69133449D1
Authority
DE
Germany
Prior art keywords
processing apparatus
image processing
color image
color
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
DE69133449T
Other languages
English (en)
Other versions
DE69133449T2 (de
Inventor
Akihiro Usami
Yoshinori Mochida
Atsutomo Yoshizawa
Yoshinori Ikeda
Kazuhisa Kemmochi
Yukio Nagase
Shinobu Arimoto
Masanori Yamada
Hajime Suzuki
Katsuhito Kato
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 JP2008370A external-priority patent/JPH03214864A/ja
Priority claimed from JP2016561A external-priority patent/JP2911512B2/ja
Priority claimed from JP1655590A external-priority patent/JP2911511B2/ja
Priority claimed from JP2022238A external-priority patent/JPH03228471A/ja
Priority claimed from JP18177190A external-priority patent/JP3156183B2/ja
Application filed by Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of DE69133449D1 publication Critical patent/DE69133449D1/de
Publication of DE69133449T2 publication Critical patent/DE69133449T2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color, Gradation (AREA)
  • Color Electrophotography (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color Image Communication Systems (AREA)
DE69133449T 1990-01-19 1991-01-16 Farbbildverarbeitungsgerät Expired - Fee Related DE69133449T2 (de)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP837090 1990-01-19
JP2008370A JPH03214864A (ja) 1990-01-19 1990-01-19 カラー画像処理装置
JP1655590 1990-01-26
JP1656190 1990-01-26
JP2016561A JP2911512B2 (ja) 1990-01-26 1990-01-26 多色画像形成方法
JP1655590A JP2911511B2 (ja) 1990-01-26 1990-01-26 多色画像形成装置
JP2223890 1990-02-02
JP2022238A JPH03228471A (ja) 1990-02-02 1990-02-02 カラー画像処理装置
JP18177190 1990-07-10
JP18177190A JP3156183B2 (ja) 1990-07-10 1990-07-10 多色画像形成方法

Publications (2)

Publication Number Publication Date
DE69133449D1 true DE69133449D1 (de) 2005-04-21
DE69133449T2 DE69133449T2 (de) 2005-09-15

Family

ID=27518936

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69132230T Expired - Fee Related DE69132230T2 (de) 1990-01-19 1991-01-16 Farbbildverarbeitungsanordnung
DE69133449T Expired - Fee Related DE69133449T2 (de) 1990-01-19 1991-01-16 Farbbildverarbeitungsgerät

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69132230T Expired - Fee Related DE69132230T2 (de) 1990-01-19 1991-01-16 Farbbildverarbeitungsanordnung

Country Status (3)

Country Link
US (2) US5469266A (de)
EP (2) EP0959615B1 (de)
DE (2) DE69132230T2 (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06155815A (ja) * 1992-11-18 1994-06-03 Konica Corp 画像形成装置
US5786900A (en) * 1994-03-23 1998-07-28 Fuji Photo Film Co., Ltd. Image recording device for recording multicolor images with dot pitch pattern randomly arranged only in the sub-scanning direction
JP2815087B2 (ja) * 1994-07-07 1998-10-27 富士ゼロックス株式会社 多色画像形成装置及び方法
EP0720350B1 (de) * 1994-12-28 2003-06-25 Fuji Photo Film Co., Ltd. Bildaufzeichnungsverfahren
JPH09261469A (ja) * 1996-01-19 1997-10-03 Canon Inc 画像処理装置及び画像処理方法
US5796929A (en) * 1996-10-24 1998-08-18 Seiko Epson Corporation Banding and ink-bleeding reduction in cluster dither by screen displacement
US6404510B1 (en) * 1997-05-28 2002-06-11 Fuji Photo Film Co., Ltd. Image printing method
JPH1141473A (ja) * 1997-07-15 1999-02-12 Toshiba Corp 画像処理装置と画像記録装置と画像形成装置
JP3950522B2 (ja) 1997-09-12 2007-08-01 キヤノン株式会社 画像処理装置及び画像処理方法
US6236415B1 (en) 1997-12-24 2001-05-22 Canon Kabushiki Kaisha Image forming apparatus and control method therefor
US6166821A (en) * 1998-10-02 2000-12-26 Electronics For Imaging, Inc. Self calibrating pulse width modulator for use in electrostatic printing applications
US6307645B1 (en) * 1998-12-22 2001-10-23 Xerox Corporation Halftoning for hi-fi color inks
US6633412B1 (en) 1999-03-26 2003-10-14 Seiko Epson Corporation Smoothness enhancement in laser printing through periodic modulation of halftone cell
JP2001219599A (ja) * 2000-02-10 2001-08-14 Alps Electric Co Ltd 画像形成方法
US6326993B1 (en) * 2000-03-15 2001-12-04 Toshiba Tec Kabushiki Kaisha Pulse width modulation system and image forming apparatus having the pulse width modulation system
JP3937906B2 (ja) * 2001-05-07 2007-06-27 キヤノン株式会社 画像表示装置
US6712442B1 (en) 2002-09-23 2004-03-30 Lexmark International, Inc. Method of image rasterization and imaging an address space an ink jet printers
JP4065533B2 (ja) * 2003-05-16 2008-03-26 キヤノン株式会社 変調装置
JP4682770B2 (ja) * 2005-09-21 2011-05-11 富士ゼロックス株式会社 画像形成装置
JP4756597B2 (ja) * 2005-11-09 2011-08-24 株式会社リコー 画像形成装置および方法
JP4545719B2 (ja) * 2006-07-29 2010-09-15 株式会社リコー 画像読取信号処理ｉｃおよび画像読取装置と画像形成装置
US20090309682A1 (en) * 2008-06-13 2009-12-17 Northrop Grumman Guidance And Electronic Company, Inc. Eight-fold dipole magnet array for generating a uniform magnetic field
JP4752920B2 (ja) 2009-01-22 2011-08-17 ブラザー工業株式会社 画像処理装置及び画像処理プログラム
JP5751555B2 (ja) * 2012-05-30 2015-07-22 株式会社沖データ 画像読取装置及び複合装置

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4196451A (en) * 1976-05-21 1980-04-01 Xerox Corporation Electronic halftone generator
US4149183A (en) * 1976-05-21 1979-04-10 Xerox Corporation Electronic halftone generator
US4185304A (en) * 1977-07-07 1980-01-22 Xerox Corporation Electronic halftone screening
DE3312273C3 (de) * 1982-04-06 1996-03-21 Canon Kk Bildverarbeitungsgerät
US4507685A (en) * 1982-06-25 1985-03-26 Canon Kabushiki Kaisha Image recording device
EP0204094B2 (de) * 1985-03-30 1998-08-19 Hitachi, Ltd. Druckverfahren vom Abtastaufzeichnungstyp und dessen Verwirklichungsvorrichtung
FR2584549B1 (fr) * 1985-07-03 1990-08-31 Commissariat Energie Atomique Procede d'utilisation d'un registre binaire a n cellules bistables permettant de determiner le rapport de deux frequences et dispositif pour la mise en oeuvre du procede
US4800442A (en) * 1985-08-15 1989-01-24 Canon Kabushiki Kaisha Apparatus for generating an image from a digital video signal
DE3689216T2 (de) * 1985-08-20 1994-03-03 Canon Kk Bildverarbeitungsgerät.
JP2710118B2 (ja) * 1985-08-20 1998-02-10 キヤノン株式会社 画像処理装置
US4870499A (en) * 1985-08-29 1989-09-26 Canon Kabushiki Kaisha Image processing apparatus
US4897734A (en) * 1985-10-28 1990-01-30 Canon Kabushiki Kaisha Image processing apparatus
JPH0795805B2 (ja) * 1986-02-07 1995-10-11 キヤノン株式会社 画像処理装置
JPH0795806B2 (ja) * 1986-02-07 1995-10-11 キヤノン株式会社 画像処理装置
JPH0828815B2 (ja) * 1986-02-07 1996-03-21 キヤノン株式会社 画像処理装置
JPS62198266A (ja) * 1986-02-26 1987-09-01 Canon Inc カラ−画像情報処理装置
JPS62230163A (ja) * 1986-03-31 1987-10-08 Canon Inc 画像処理装置
US4868684A (en) * 1986-04-03 1989-09-19 Canon Kabushiki Kaisha Image processing apparatus
US4974067A (en) * 1986-06-06 1990-11-27 Ricoh Company, Ltd. Multi-step-digital color image reproducing method and apparatus
US4918622A (en) * 1988-11-16 1990-04-17 Eastman Kodak Company Electronic graphic arts screener
US5172132A (en) * 1990-03-06 1992-12-15 Konica Corporation Digital image forming device and method for forming an image from a plurality of dots
DE69215038T2 (de) * 1991-08-21 1997-04-10 Konishiroku Photo Ind Abbildungsgerät

Also Published As

Publication number Publication date
EP0959615A2 (de) 1999-11-24
EP0438271A2 (de) 1991-07-24
US5748328A (en) 1998-05-05
DE69132230T2 (de) 2000-11-09
DE69133449T2 (de) 2005-09-15
EP0438271B1 (de) 2000-05-31
EP0959615B1 (de) 2005-03-16
DE69132230D1 (de) 2000-07-06
EP0959615A3 (de) 2000-07-12
EP0438271A3 (en) 1993-04-07
US5469266A (en) 1995-11-21

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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