SG66241A1 - Image processing apparatus - Google Patents

Image processing apparatus

Info

Publication number: SG66241A1
Authority: SG; Singapore
Prior art keywords: processing apparatus; image processing; image; processing
Prior art date: 1993-06-24

Application number

SG1996003109A

Other languages

English (en)

Inventor

Toshiaki Kakutani

Original Assignee

Seiko Epson 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.)

1993-06-24

Filing date

1994-06-24

Publication date

1999-07-20

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26482148&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SG66241(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1994-06-24 Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp

1999-07-20 Publication of SG66241A1 publication Critical patent/SG66241A1/en

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
- H04N1/4051—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size
- H04N1/4052—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size by error diffusion, i.e. transferring the binarising error to neighbouring dot decisions
- H04N1/4053—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size by error diffusion, i.e. transferring the binarising error to neighbouring dot decisions with threshold modulated relative to input image data or vice versa

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Facsimile Image Signal Circuits (AREA)
Image Processing (AREA)
Controls And Circuits For Display Device (AREA)

SG1996003109A 1993-06-24 1994-06-24 Image processing apparatus SG66241A1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP15356693		1993-06-24
JP35289893A JP3360391B2 (ja)	1993-06-24	1993-12-28	画像処理装置および画像処理方法

Publications (1)

Publication Number	Publication Date
SG66241A1 true SG66241A1 (en)	1999-07-20

Family

ID=26482148

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SG1996003109A SG66241A1 (en)	1993-06-24	1994-06-24	Image processing apparatus

Country Status (5)

Country	Link
US (2)	US5553166A (ja)
EP (1)	EP0631427B1 (ja)
JP (1)	JP3360391B2 (ja)
DE (1)	DE69427324T2 (ja)
SG (1)	SG66241A1 (ja)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH10285390A (ja) *	1997-04-03	1998-10-23	Minolta Co Ltd	画像処理装置
JP3634419B2 (ja) *	1994-07-25	2005-03-30	セイコーエプソン株式会社	画像処理方法および画像処理装置
JPH0846784A (ja) *	1994-07-27	1996-02-16	Brother Ind Ltd	画像処理装置
US5708514A (en) *	1994-08-31	1998-01-13	Kabushiki Kaisha Toshiba	Error diffusion method in a multi-level image recording apparatus utilizing adjacent-pixel characteristics
US5870503A (en) *	1994-10-20	1999-02-09	Minolta Co., Ltd.	Image processing apparatus using error diffusion technique
JP3322522B2 (ja) *	1995-05-16	2002-09-09	ブラザー工業株式会社	カラー画像処理装置
JP3347591B2 (ja) *	1995-07-31	2002-11-20	キヤノン株式会社	画像処理方法及び装置
JP3444094B2 (ja) *	1995-10-06	2003-09-08	セイコーエプソン株式会社	画像処理方法及びその装置
US5737453A (en) *	1996-05-17	1998-04-07	Canon Information Systems, Inc.	Enhanced error-diffusion method for color or black-and-white reproduction
US5835687A (en) *	1996-10-21	1998-11-10	Vidar Systems Corporation	Methods and apparatus for providing digital halftone images with random error diffusion dithering
US5936684A (en) *	1996-10-29	1999-08-10	Seiko Epson Corporation	Image processing method and image processing apparatus
US6094225A (en) *	1997-12-02	2000-07-25	Daewoo Electronics, Co., Ltd.	Method and apparatus for encoding mode signals for use in a binary shape coder
JP2000175034A (ja)	1998-12-04	2000-06-23	Ricoh Co Ltd	画像処理装置
DE60022956T2 (de)	1999-07-09	2006-07-13	Seiko Epson Corp.	Arbeitseinheit eines Bilderzeugungsgeräts mit Aufladewalze und Reinigungseinheit, wobei letztere nur zum Reinigen und durch einen Motorantrieb mit der Aufladewalze in Kontakt gebracht wird
JP2001313831A (ja)	1999-11-05	2001-11-09	Ricoh Co Ltd	画像処理装置、画像処理方法、およびその方法をコンピュータに実行させるプログラムを記録したコンピュータ読み取り可能な記録媒体
JP4232335B2 (ja) *	2000-06-08	2009-03-04	コニカミノルタビジネステクノロジーズ株式会社	画像処理装置および画像処理方法
JP3708465B2 (ja) *	2001-01-22	2005-10-19	松下電器産業株式会社	画像処理方法および画像処理用プログラム
US7417771B2 (en) *	2001-06-26	2008-08-26	Sharp Laboratories Of America, Inc.	Error diffusion halftoning system
US7564588B2 (en)	2002-01-24	2009-07-21	Ricoh Company, Ltd.	Image forming device, image forming method, and recording medium that provide multi-level error diffusion
US7359084B2 (en) *	2002-02-06	2008-04-15	Canon Kabushiki Kaisha	Preview display for multiple-sided printing
JP4014083B2 (ja)	2002-03-06	2007-11-28	株式会社リコー	画像形成装置
US8064073B2 (en) *	2002-12-03	2011-11-22	Sprague Jeffrey R	Adaptive rasterizer buffer
JP4217657B2 (ja) *	2003-07-30	2009-02-04	キヤノン株式会社	画像処理方法、プログラム、記憶媒体及び装置
JP2006074305A (ja) *	2004-09-01	2006-03-16	Ricoh Co Ltd	階調再現方法、画像形成装置及びプリンタドライバ
US7760400B2 (en) *	2004-10-07	2010-07-20	Ricoh Company, Limited	Creating multiple threshold matrices to be used in error diffused multilevel halftoning
KR100822466B1 (ko) *	2004-10-29	2008-04-16	가부시키가이샤 리코	화상 처리 장치, 화상 형성 장치, 및 프로그램을 기록한 기록매체
JP4471813B2 (ja)	2004-10-29	2010-06-02	株式会社リコー	画像処理装置、画像形成装置及びプログラム
US7440632B2 (en) *	2005-05-06	2008-10-21	Intel Corporation	Technique for performing error diffusion
US7564589B2 (en) *	2006-08-31	2009-07-21	Eastman Kodak Company	Color error diffusion with error signal offsets
JP5028324B2 (ja) *	2008-04-18	2012-09-19	キヤノン株式会社	画像処理装置およびその方法
US8760725B1 (en) *	2008-11-12	2014-06-24	Marvell International Ltd.	Tone dependent threshold perturbation error diffusion halftone
JP4725755B2 (ja) *	2008-12-26	2011-07-13	コニカミノルタビジネステクノロジーズ株式会社	プリンタ階調補正方法およびカラーパッチ画像
JP5508031B2 (ja) *	2010-01-06	2014-05-28	キヤノン株式会社	画像処理装置および画像処理方法
JP6119322B2 (ja)	2013-03-13	2017-04-26	セイコーエプソン株式会社	画像データ処理装置、印刷装置および印刷システム
JP6175915B2 (ja)	2013-06-05	2017-08-09	セイコーエプソン株式会社	印刷装置、印刷方法、プログラム、および画像処理装置
JP6175914B2 (ja)	2013-06-05	2017-08-09	セイコーエプソン株式会社	印刷装置、印刷方法、および画像処理装置
JP6256108B2 (ja)	2014-03-04	2018-01-10	セイコーエプソン株式会社	印刷装置、印刷用データ生成装置およびその方法、ならびに印刷用データ生成プログラム
JP6176160B2 (ja) *	2014-03-14	2017-08-09	富士ゼロックス株式会社	画像処理装置、画像形成システムおよび画像形成装置
JP6759938B2 (ja) *	2016-09-29	2020-09-23	セイコーエプソン株式会社	画像処理装置、画像処理方法、およびコンピュータープログラム
JP6973098B2 (ja)	2018-01-16	2021-11-24	セイコーエプソン株式会社	画像処理装置、画像処理装置の制御方法、及び印刷装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5208873A (en) *	1987-09-10	1993-05-04	Minolta Camera Kabushiki Kaisha	Image reader having an editor for setting a threshold value
JP2662401B2 (ja) *	1987-11-16	1997-10-15	キヤノン株式会社	画像処理装置
DE3838730C2 (de) *	1987-11-16	1994-07-28	Canon Kk	Verfahren und Vorrichtung zur Bildverarbeitung
US5045952A (en) *	1989-08-21	1991-09-03	Xerox Corporation	Method for edge enhanced error diffusion
JPH04154370A (ja) *	1990-10-18	1992-05-27	Fujitsu Ltd	画像処理装置及び画像処理方法
EP0481808A3 (en) *	1990-10-18	1993-11-03	Fujitsu Ltd	Image processing device and image processing method
US5307425A (en) *	1991-09-02	1994-04-26	Rohm Co., Ltd.	Bi-level halftone processing circuit and image processing apparatus using the same
US5268774A (en) *	1991-11-27	1993-12-07	Xerox Corporation	Halftoning with enhanced dynamic range and edge enhanced error diffusion
US5325211A (en) *	1993-01-04	1994-06-28	Xerox Corporation	Error diffusion with output and input based feedback

1993
- 1993-12-28 JP JP35289893A patent/JP3360391B2/ja not_active Expired - Lifetime
1994
- 1994-06-23 US US08/264,364 patent/US5553166A/en not_active Expired - Lifetime
- 1994-06-24 DE DE69427324T patent/DE69427324T2/de not_active Expired - Lifetime
- 1994-06-24 EP EP94109836A patent/EP0631427B1/en not_active Expired - Lifetime
- 1994-06-24 SG SG1996003109A patent/SG66241A1/en unknown
1996
- 1996-06-04 US US08/657,286 patent/US5764811A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
JPH07111591A (ja)	1995-04-25
DE69427324T2 (de)	2002-04-25
EP0631427A2 (en)	1994-12-28
EP0631427A3 (en)	1995-03-22
EP0631427B1 (en)	2001-05-30
US5553166A (en)	1996-09-03
JP3360391B2 (ja)	2002-12-24
US5764811A (en)	1998-06-09
DE69427324D1 (de)	2001-07-05

Publication	Publication Date	Title
SG66241A1 (en)	1999-07-20	Image processing apparatus
SG46594A1 (en)	1998-02-20	Image processing apparatus
EP0642060A3 (en)	1995-10-18	Image processing apparatus.
EP0619678A3 (en)	1995-07-26	Image processing apparatus.
EP0645736A3 (en)	1995-11-02	Image processing apparatus.
EP0506332A3 (en)	1993-03-03	Image processing apparatus
EP0621547A3 (en)	1995-05-17	Image processing apparatus.
EP0500327A3 (en)	1993-02-10	Image processing apparatus
EP0501814A3 (en)	1993-03-10	Image processing apparatus
EP0497304A3 (en)	1992-09-30	Image processing apparatus
EP0712093A3 (en)	1996-07-31	Image processing device
GB2288512B (en)	1998-08-26	Image processing apparatus
EP0506381A3 (en)	1993-05-05	Image processing apparatus
SG47616A1 (en)	1998-04-17	Image processing apparatus
EP0720343A3 (en)	1996-12-11	Image processing device
EP0696866A3 (en)	1997-09-24	Image processing device
GB2269081B (en)	1997-03-12	Image processing apparatus
EP0711066A3 (en)	1996-12-27	Image processing apparatus
EP0504876A3 (en)	1993-12-01	Image processing apparatus
GB2281674B (en)	1997-11-05	Digital image processing apparatus
EP0631441A3 (en)	1995-02-01	Image processing device.
EP0708548A3 (en)	1996-07-03	Image processing apparatus
GB2273844B (en)	1996-08-07	Image processing apparatus
EP0501496A3 (en)	1993-02-24	Image processing apparatus
EP0553762A3 (en)	1993-10-06	Image processing apparatus