DE69227136D1 - Bildverarbeitungsgerät - Google Patents

Bildverarbeitungsgerät

Info

Publication number
DE69227136D1
DE69227136D1 DE69227136T DE69227136T DE69227136D1 DE 69227136 D1 DE69227136 D1 DE 69227136D1 DE 69227136 T DE69227136 T DE 69227136T DE 69227136 T DE69227136 T DE 69227136T DE 69227136 D1 DE69227136 D1 DE 69227136D1
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
DE69227136T
Other languages
English (en)
Other versions
DE69227136T2 (de
Inventor
Keizo Isemura
Kunio Yoshihara
Hiroyuki Ichikawa
Masanori Sakai
Masatoshi Tanabe
Mitsuo Nimura
Yoshihiro Funamizu
Hirohiko Kishimoto
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 JP03047667A external-priority patent/JP3131908B2/ja
Priority claimed from JP15393891A external-priority patent/JP3206932B2/ja
Priority claimed from JP3153939A external-priority patent/JPH04351171A/ja
Application filed by Canon Inc filed Critical Canon Inc
Publication of DE69227136D1 publication Critical patent/DE69227136D1/de
Application granted granted Critical
Publication of DE69227136T2 publication Critical patent/DE69227136T2/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
    • H04N1/40012—Conversion of colour to monochrome
DE69227136T 1991-02-20 1992-02-19 Bildverarbeitungsgerät Expired - Fee Related DE69227136T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP03047667A JP3131908B2 (ja) 1991-02-20 1991-02-20 画像処理装置及び方法
JP15393891A JP3206932B2 (ja) 1991-05-29 1991-05-29 画像処理方法及び装置
JP3153939A JPH04351171A (ja) 1991-05-29 1991-05-29 画像処理装置

Publications (2)

Publication Number Publication Date
DE69227136D1 true DE69227136D1 (de) 1998-11-05
DE69227136T2 DE69227136T2 (de) 1999-04-01

Family

ID=27293037

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69232653T Expired - Lifetime DE69232653D1 (de) 1991-02-20 1992-02-19 Bildverarbeitungsgerät
DE69227136T Expired - Fee Related DE69227136T2 (de) 1991-02-20 1992-02-19 Bildverarbeitungsgerät

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69232653T Expired - Lifetime DE69232653D1 (de) 1991-02-20 1992-02-19 Bildverarbeitungsgerät

Country Status (3)

Country Link
US (2) US5726781A (de)
EP (2) EP0860988B1 (de)
DE (2) DE69232653D1 (de)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2292466B (en) * 1994-08-15 1997-09-10 Pirelli General Plc Guiding optical fibres in ducts
JP3088063B2 (ja) * 1994-10-25 2000-09-18 富士通株式会社 カラー画像処理方法及びカラー画像処理装置
US5818966A (en) * 1995-01-23 1998-10-06 Ricoh Company, Ltd. Method and apparatus for encoding color information on a monochrome document
DE19513030C1 (de) * 1995-04-06 1996-07-25 Siemens Ag Verfahren zur monochromen Darstellung eines farbigen Bildes
JP3562174B2 (ja) * 1995-11-13 2004-09-08 ミノルタ株式会社 画像処理装置
JP3334025B2 (ja) * 1995-11-13 2002-10-15 ミノルタ株式会社 画像形成装置
US6343141B1 (en) 1996-10-08 2002-01-29 Lucent Technologies Inc. Skin area detection for video image systems
US6179485B1 (en) * 1996-11-18 2001-01-30 Xerox Corporation Printing black and white reproducible colored stroke documents
JP3304858B2 (ja) * 1997-11-28 2002-07-22 富士ゼロックス株式会社 画像送信装置および画像送信方法
US6029018A (en) * 1998-09-10 2000-02-22 Tektronix, Inc. Color capable electrophotographic printer
US6567186B1 (en) * 1998-10-27 2003-05-20 Hewlett-Packard Company Method for determining gray values in a printer
US7110127B2 (en) * 1999-04-20 2006-09-19 Hewlett-Packard Development Company, L.P. Method and apparatus for product regionalization
JP2001016459A (ja) * 1999-06-28 2001-01-19 Riso Kagaku Corp カラー画像情報に基づく白黒画像印刷方法および装置
US6373481B1 (en) 1999-08-25 2002-04-16 Intel Corporation Method and apparatus for automatic focusing in an image capture system using symmetric FIR filters
JP2001094810A (ja) * 1999-09-22 2001-04-06 Toshiba Tec Corp 画像処理方法及び画像処理装置並びに画像形成装置
US6817289B1 (en) * 1999-11-15 2004-11-16 Gateway, Inc. Method and apparatus for modifying and controlling print information
US20020054329A1 (en) * 2000-07-13 2002-05-09 Murata Kikai Kabushiki Kaisha Image-forming apparatus
US7453468B2 (en) * 2000-11-29 2008-11-18 Xerox Corporation Intelligent color to texture converter
NL1018808C2 (nl) 2001-08-23 2003-02-25 Oce Tech Bv Omzetting van kleurenbeelden in grijswaardenbeelden.
US7003166B2 (en) * 2002-01-29 2006-02-21 Eastman Kodak Company Method of encoding data in a monochrome media
US7177476B2 (en) * 2002-02-28 2007-02-13 Eastman Kodak Company Method of decoding data encoded in a monochrome medium
US8537417B2 (en) * 2003-09-25 2013-09-17 Xerox Corporation Method for improved printer characterization
JP4227500B2 (ja) * 2003-11-21 2009-02-18 キヤノン株式会社 履歴管理システム、履歴管理方法、プログラム及び記録媒体
US7382915B2 (en) * 2004-03-16 2008-06-03 Xerox Corporation Color to grayscale conversion method and apparatus
JP4442879B2 (ja) * 2004-07-28 2010-03-31 キヤノン株式会社 画像形成装置及び色信号変換方法
TWI362213B (en) * 2005-08-09 2012-04-11 Contact image sensor module
US7777917B2 (en) * 2005-09-08 2010-08-17 The Go Daddy Group, Inc. Document color and shades of gray optimization using solid monochrome colors
US7502135B2 (en) * 2005-09-08 2009-03-10 The Go Daddy Group, Inc. Document color and shades of gray optimization using dithered monochrome surfaces
US8179565B2 (en) * 2005-09-08 2012-05-15 Go Daddy Operating Company, LLC Document color and shades of gray optimization using outlining
US8115977B2 (en) * 2005-09-08 2012-02-14 Go Daddy Operating Company, LLC Document color and shades of gray optimization using monochrome patterns
EP2005412A4 (de) * 2006-03-22 2011-03-30 Tenebraex Corp Verfahren für blinde personen zur unterscheidung zwischen verschiedenen farben
US8169447B2 (en) * 2007-05-22 2012-05-01 International Business Machines Corporation Automatic color display conversion
US8885212B2 (en) * 2011-02-28 2014-11-11 Ricoh Company, Ltd. Converting between color and monochrome
US8811739B2 (en) * 2011-08-17 2014-08-19 Seiko Epson Corporation Image processing device
US8977046B2 (en) * 2012-02-13 2015-03-10 Seiko Epson Corporation Image processing device, image processing method, and storage medium storing image processing program with color to pattern correlation
JP6060062B2 (ja) * 2013-07-30 2017-01-11 京セラドキュメントソリューションズ株式会社 画像処理装置及びプログラム
JP2020031316A (ja) * 2018-08-22 2020-02-27 シャープ株式会社 画像形成装置、画像色変更方法及び画像色変更プログラム
ES2774013B2 (es) * 2018-12-20 2021-08-11 Univ Nacional De Educacion A Distancia Uned Metodo y sistema para convertir una imagen digital de color a escala de grises

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5666974A (en) * 1979-11-02 1981-06-05 Canon Inc Picture forming method
US4642681A (en) * 1982-10-08 1987-02-10 Canon Kabushiki Kaisha Color image processing apparatus for generating color output signals and a black output signal in a mutually exclusive manner
US4688031A (en) * 1984-03-30 1987-08-18 Wang Laboratories, Inc. Monochromatic representation of color images
US4703318A (en) * 1984-03-30 1987-10-27 Wang Laboratories, Inc. Character-based monochromatic representation of color images
JPH0670725B2 (ja) * 1985-12-16 1994-09-07 イ−ストマン・コダック・カンパニ− 色強調複写物を作成するための多色電子写真複写装置及び方法
US4868552A (en) * 1986-08-25 1989-09-19 Rohde & Schwartz-Polarad Apparatus and method for monochrome/multicolor display of superimposed images
EP0269334B1 (de) * 1986-11-14 1995-02-08 Canon Kabushiki Kaisha Farbbildverarbeitungsgerät
JPS63187770A (ja) * 1987-01-29 1988-08-03 Toshiba Corp 画像形成装置
JPS6491175A (en) * 1987-10-02 1989-04-10 Fanuc Ltd Display device
JPH01267691A (ja) * 1988-04-20 1989-10-25 Seiko Epson Corp プリント装置
US5187521A (en) * 1990-03-22 1993-02-16 Canon Kabushiki Kaisha Multicolor image forming apparatus with color component discrimination function
US5153576A (en) * 1990-08-29 1992-10-06 Xerox Corporation Mapping of color images to black-and-white textured images

Also Published As

Publication number Publication date
EP0500327A3 (en) 1993-02-10
EP0860988A3 (de) 1998-09-30
EP0500327A2 (de) 1992-08-26
EP0860988B1 (de) 2002-06-19
EP0860988A2 (de) 1998-08-26
DE69232653D1 (de) 2002-07-25
US5726781A (en) 1998-03-10
EP0500327B1 (de) 1998-09-30
US5557430A (en) 1996-09-17
DE69227136T2 (de) 1999-04-01

Similar Documents

Publication Publication Date Title
DE69222215T2 (de) Bildverarbeitungsgerät
DE69226689D1 (de) Bildverarbeitungsgerät
DE69216129D1 (de) Bildverarbeitungsgerät
DE69229209T2 (de) Bildverarbeitungsgerät
DE69217403D1 (de) Bildverarbeitungsgerät
DE69226993D1 (de) Bildverarbeitungsgerät
DE69227136D1 (de) Bildverarbeitungsgerät
DE69227853T2 (de) Bildverarbeitungsgerät
DE69209540T2 (de) Bildverarbeitungsgerät
DE69216898D1 (de) Bildverarbeitungsgerät
DE69225830T2 (de) Bildverarbeitungsgerät
DE69223536T2 (de) Bildverarbeitungsgerät
DE69227492D1 (de) Bildverarbeitungsgerät
DE69227351D1 (de) Bildverarbeitungsgerät
DE69212192D1 (de) Bildverarbeitungsgerät
DE69224263D1 (de) Bildverarbeitungsgerät
DE69212035D1 (de) Bildverarbeitungsgerät
DE69216256D1 (de) Bildverarbeitungsgerät
DE69224232D1 (de) Bildverarbeitungsgerät
DE69226839T2 (de) Bildverarbeitungsgerät
DE69214197D1 (de) Bildverarbeitungsgerät
DE69208906D1 (de) Bildverarbeitungsgerät
DE69225158T2 (de) Bildverarbeitungsgerät
DE69230953D1 (de) Bildverarbeitungsgerät

Legal Events

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