DE69131119D1 - Farbbildverarbeitung - Google Patents

Farbbildverarbeitung

Info

Publication number
DE69131119D1
DE69131119D1 DE69131119T DE69131119T DE69131119D1 DE 69131119 D1 DE69131119 D1 DE 69131119D1 DE 69131119 T DE69131119 T DE 69131119T DE 69131119 T DE69131119 T DE 69131119T DE 69131119 D1 DE69131119 D1 DE 69131119D1
Authority
DE
Germany
Prior art keywords
image processing
color image
color
processing
image
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 - Lifetime
Application number
DE69131119T
Other languages
English (en)
Other versions
DE69131119T2 (de
Inventor
Takashi Kawai
Akihiro Usami
Ken-Ichi Ohta
Yoshiko Horie
Seita Shono
Eiji Ohta
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
Application filed by Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of DE69131119D1 publication Critical patent/DE69131119D1/de
Publication of DE69131119T2 publication Critical patent/DE69131119T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/6016—Conversion to subtractive colour signals
    • H04N1/6022—Generating a fourth subtractive colour signal, e.g. under colour removal, black masking
    • H04N1/6025—Generating a fourth subtractive colour signal, e.g. under colour removal, black masking using look-up tables
DE69131119T 1990-11-20 1991-11-19 Farbbildverarbeitung Expired - Lifetime DE69131119T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2312639A JPH04185075A (ja) 1990-11-20 1990-11-20 カラー画像処理装置

Publications (2)

Publication Number Publication Date
DE69131119D1 true DE69131119D1 (de) 1999-05-20
DE69131119T2 DE69131119T2 (de) 1999-09-23

Family

ID=18031632

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69131119T Expired - Lifetime DE69131119T2 (de) 1990-11-20 1991-11-19 Farbbildverarbeitung

Country Status (4)

Country Link
US (1) US5315415A (de)
EP (1) EP0487304B1 (de)
JP (1) JPH04185075A (de)
DE (1) DE69131119T2 (de)

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EP0523898B1 (de) * 1991-07-08 1999-05-06 Canon Kabushiki Kaisha Farbvorstellungsverfahren, Farbbildlesegerät und Farbbildverarbeitungsgerät
JP2814860B2 (ja) * 1991-11-14 1998-10-27 松下電器産業株式会社 画像拡大縮小装置
IL101197A (en) * 1992-03-10 1996-01-19 Scitex Corp Ltd Device and method for character color transformations
JP3268512B2 (ja) * 1993-03-03 2002-03-25 セイコーエプソン株式会社 画像処理装置および画像処理方法
JP3360358B2 (ja) * 1993-06-30 2002-12-24 東洋インキ製造株式会社 印刷色材量決定方法
US5666436A (en) * 1993-10-14 1997-09-09 Electronics For Imaging Method and apparatus for transforming a source image to an output image
US6278800B1 (en) * 1993-11-04 2001-08-21 Eastman Kodak Company Method and associated apparatus for transforming of color-image signals for consistent shadow to highlight characteristics
JP3417993B2 (ja) * 1994-04-27 2003-06-16 富士通株式会社 色補正方法および装置
US5572632A (en) * 1994-10-07 1996-11-05 Laser Master Corporation Universal frame buffer for a rendering device
US5710577A (en) * 1994-10-07 1998-01-20 Lasermaster Corporation Pixel description packet for a rendering device
JPH0983792A (ja) * 1995-09-20 1997-03-28 Canon Inc 画像処理装置及びその方法
IT1284432B1 (it) * 1996-03-22 1998-05-21 De La Rue Giori Sa Procedimento di controllo automatico della qualita' di stampa di un'immagine policroma
US6118474A (en) * 1996-05-10 2000-09-12 The Trustees Of Columbia University In The City Of New York Omnidirectional imaging apparatus
US5870077A (en) * 1997-02-26 1999-02-09 Hewlett-Packard Company Method for tristimulus color data non-linear storage, retrieval, and interpolation
US6933949B1 (en) * 1997-02-26 2005-08-23 Hewlett-Packard Company Method for interpolation of tristimulus color data
US6215561B1 (en) 1997-02-28 2001-04-10 Seiko Epson Corporation Image processing apparatus and image processing method
JPH114352A (ja) 1997-06-12 1999-01-06 Canon Inc 画像処理方法および装置および記録媒体
JPH1146305A (ja) 1997-07-25 1999-02-16 Canon Inc 画像処理方法、装置及び記録媒体
US6304671B1 (en) 1997-10-08 2001-10-16 Seiko Epson Corporation Image processing apparatus using an offset correction table enabling interpolation to be performed without conditional jumps
US6268939B1 (en) * 1998-01-08 2001-07-31 Xerox Corporation Method and apparatus for correcting luminance and chrominance data in digital color images
US6075886A (en) * 1998-03-09 2000-06-13 Xerox Corporation Method and apparatus for reducing the complexity of color correction using subsampling
JP2000059645A (ja) * 1998-08-14 2000-02-25 Toshiba Corp 画像処理装置
FR2798494B1 (fr) 1999-09-14 2002-03-29 St Microelectronics Sa Distribution d'erreur pour l'approximation de la couleur des pixels d'une image numerique
JP3943886B2 (ja) 2001-10-04 2007-07-11 キヤノン株式会社 テーブル作成方法、テーブル作成装置、記憶媒体及びプログラム
JP3823858B2 (ja) 2002-03-20 2006-09-20 セイコーエプソン株式会社 補正テーブルを用いたカラー画像データの補正方法
JP4092983B2 (ja) * 2002-08-27 2008-05-28 セイコーエプソン株式会社 出力解像度に応じたフィルタ処理を行う画像処理装置
US20040227963A1 (en) * 2003-05-14 2004-11-18 Jacobsen Dana A. Introducing loss directly on display list data
US7570835B2 (en) 2004-02-17 2009-08-04 International Business Machines Corporation Edge smoothing filter for character recognition
JP4774736B2 (ja) * 2004-12-27 2011-09-14 カシオ計算機株式会社 画像拡大装置および撮像装置
US20070162480A1 (en) * 2006-01-10 2007-07-12 Kabushiki Kaisha Toshiba System and method for monitoring consumables in a document processing environment
US7965429B1 (en) 2006-06-12 2011-06-21 Marvell International Ltd. Method and apparatus for performing color plane
JP5645789B2 (ja) * 2011-09-28 2014-12-24 京セラドキュメントソリューションズ株式会社 色変換装置、画像形成装置、色変換プログラム、及び画像形成プログラム
JP5645790B2 (ja) * 2011-09-28 2014-12-24 京セラドキュメントソリューションズ株式会社 色変換装置、画像形成装置、色変換プログラム、及び画像形成プログラム

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2050751B (en) * 1979-05-30 1983-06-29 Crosfield Electronics Ltd Image-reproduction apparatus
GB2053619B (en) * 1979-07-03 1983-11-02 Crosfield Electronics Ltd Interpolation methods and apparatus
JPS61214862A (ja) * 1985-03-21 1986-09-24 Canon Inc カラ−画像形成方法
JPS62101178A (ja) * 1985-10-29 1987-05-11 Canon Inc 画像情報処理装置
US5060060A (en) * 1986-05-30 1991-10-22 Canon Kabushiki Kaisha Method and apparatus for processing color images having high maximum saturation
US4887151A (en) * 1986-06-30 1989-12-12 Canon Kabushiki Kaisha Encoding apparatus for color image data with block-by-block individual quantizing or individual encoding of luminosity, structure, and color information
US4965664A (en) * 1986-08-15 1990-10-23 Canon Kabushiki Kaisha Color image signal processing method and apparatus for recording a color image from input color image signals by converting an individual color signal component
US4905097A (en) * 1986-09-20 1990-02-27 Canon Kabushiki Kaisha Image processing system capable of processing both binary and multivalue image data and having converters for converting each type of image data into the other type of image data
EP0273398B1 (de) * 1986-12-25 1995-02-08 Konica Corporation Farbbildkorrekturverfahren
ES2093767T3 (es) * 1988-05-13 1997-01-01 Canon Kk Aparato para el proceso de imagenes.
JPH02254868A (ja) * 1989-03-28 1990-10-15 Konica Corp カラー画像処理装置

Also Published As

Publication number Publication date
EP0487304B1 (de) 1999-04-14
DE69131119T2 (de) 1999-09-23
EP0487304A2 (de) 1992-05-27
EP0487304A3 (en) 1993-01-13
JPH04185075A (ja) 1992-07-01
US5315415A (en) 1994-05-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition