DE69306847D1 - Bildverarbeitungssystem und -methode unter Anwendung adaptiver Abtastung von Halbtonvorlagen um besser druckbare Bilder zu erzeugen - Google Patents

Bildverarbeitungssystem und -methode unter Anwendung adaptiver Abtastung von Halbtonvorlagen um besser druckbare Bilder zu erzeugen

Info

Publication number
DE69306847D1
DE69306847D1 DE69306847T DE69306847T DE69306847D1 DE 69306847 D1 DE69306847 D1 DE 69306847D1 DE 69306847 T DE69306847 T DE 69306847T DE 69306847 T DE69306847 T DE 69306847T DE 69306847 D1 DE69306847 D1 DE 69306847D1
Authority
DE
Germany
Prior art keywords
produce
image processing
processing system
adaptive scanning
printable images
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
DE69306847T
Other languages
English (en)
Other versions
DE69306847T2 (de
Inventor
Reiner Eschbach
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.)
Xerox Corp
Original Assignee
Xerox 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.)
Filing date
Publication date
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of DE69306847D1 publication Critical patent/DE69306847D1/de
Application granted granted Critical
Publication of DE69306847T2 publication Critical patent/DE69306847T2/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
    • H04N1/409—Edge or detail enhancement; Noise or error suppression
    • H04N1/4092—Edge or detail enhancement
    • 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
    • H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
DE69306847T 1992-04-17 1993-04-05 Bildverarbeitungssystem und -methode unter Anwendung adaptiver Abtastung von Halbtonvorlagen um besser druckbare Bilder zu erzeugen Expired - Fee Related DE69306847T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/870,066 US5341224A (en) 1992-04-17 1992-04-17 Image processing system and method for employing adaptive scanning of halftones to provide better printable images

Publications (2)

Publication Number Publication Date
DE69306847D1 true DE69306847D1 (de) 1997-02-06
DE69306847T2 DE69306847T2 (de) 1997-06-26

Family

ID=25354731

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69306847T Expired - Fee Related DE69306847T2 (de) 1992-04-17 1993-04-05 Bildverarbeitungssystem und -methode unter Anwendung adaptiver Abtastung von Halbtonvorlagen um besser druckbare Bilder zu erzeugen

Country Status (4)

Country Link
US (1) US5341224A (de)
EP (1) EP0566300B1 (de)
JP (1) JP3327617B2 (de)
DE (1) DE69306847T2 (de)

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US5477335A (en) * 1992-12-28 1995-12-19 Eastman Kodak Company Method and apparatus of copying of black text on documents using a color scanner
JP2904671B2 (ja) * 1993-03-03 1999-06-14 大日本スクリーン製造株式会社 多階調画像の修正装置
WO1994023531A1 (en) * 1993-04-01 1994-10-13 Image Processing Technologies, Inc. Process and device for analyzing image data in a digital signal from a scanned document
DE69521638T2 (de) * 1994-03-02 2001-10-25 Hewlett-Packard Co. (N.D.Ges.D.Staates Delaware), Palo Alto Erzeugung von Mehrfachtonbildern
EP0670654B1 (de) * 1994-03-02 2001-04-18 Hewlett-Packard Company, A Delaware Corporation Erzeugung von Mehrfachtonbildern
GB9405723D0 (en) * 1994-03-23 1994-05-11 Crosfield Electronics Ltd Method and apparatus for producing a digital half-tone representation of an image
US5663772A (en) * 1994-03-29 1997-09-02 Matsushita Electric Industrial Co., Ltd. Gray-level image processing with weighting factors to reduce flicker
KR960001927A (ko) * 1994-06-30 1996-01-26 김광호 상역식별장치
US5754708A (en) * 1994-11-16 1998-05-19 Mita Industrial Co. Ltd. Dotted image area detecting apparatus and dotted image area detecting method
JPH08214161A (ja) * 1995-02-03 1996-08-20 Toshiba Corp 画像処理装置
KR0181129B1 (ko) * 1995-06-17 1999-05-01 김광호 화상처리장치의 화소 이치화 장치 및 방법
US5737453A (en) * 1996-05-17 1998-04-07 Canon Information Systems, Inc. Enhanced error-diffusion method for color or black-and-white reproduction
US6226415B1 (en) * 1998-05-01 2001-05-01 The United States Of America As Represented By The Secretary Of Commerce Noise reduction in volume holographic memories
US6624909B1 (en) 1999-05-27 2003-09-23 International Business Machines Corporation Image file format for storing graphical matter and related information
US6992789B2 (en) * 2001-06-15 2006-01-31 International Business Machines Corporation Method, system, and program for managing a multi-page document
US20030043413A1 (en) * 2001-08-31 2003-03-06 Jia Charles Chi System and method of detecting scanned halftone image and enhancing such image for reproduction
US6839459B2 (en) * 2001-09-19 2005-01-04 Hewlett-Packard Development Company, L.P. Method and apparatus for three-dimensional shadow lightening
US6914700B2 (en) 2003-04-17 2005-07-05 Lexmark International, Inc. Method for reducing migrating residual error in error diffusion halftoning
JP4189467B2 (ja) * 2004-05-27 2008-12-03 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
US7711203B2 (en) * 2004-06-09 2010-05-04 Broadcom Corporation Impulsive noise removal using maximum and minimum neighborhood values
KR100750119B1 (ko) * 2005-04-01 2007-08-21 삼성전자주식회사 이미지의 에지 정보를 이용한 이미지 형성 방법 및 장치
KR101191899B1 (ko) * 2007-07-24 2012-10-17 삼성전자주식회사 하프토닝 이미지 보정 장치 및 방법 그리고 그를 이용한화상형성장치
JP2010092330A (ja) 2008-10-09 2010-04-22 Seiko Epson Corp 動作シーケンス作成装置、動作シーケンス作成装置の制御方法およびプログラム
US9609319B2 (en) * 2012-07-06 2017-03-28 Intel Corporation Detection, location, and processing of static pixels
JP6001010B2 (ja) * 2014-06-11 2016-10-05 キヤノン株式会社 画像処理装置、画像処理方法、及びプログラム
TWI612796B (zh) * 2016-12-20 2018-01-21 東友科技股份有限公司 傳真方法

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CH332844A (de) * 1954-11-10 1958-09-30 Hell Rudolf Dr Ing Fa Verfahren zur Herstellung von gerasterten Klischees mit automatischer Tonwertkorrektur und Vorrichtung zur Durchführung des Verfahrens
US2962550A (en) * 1957-02-06 1960-11-29 Time Inc Resolution restorer system
US3249690A (en) * 1961-11-13 1966-05-03 Beckman Instruments Inc Video quantizer producing binary output signals at inflection points of input signal
US4084196A (en) * 1977-01-31 1978-04-11 Dacom, Inc. Electronic half-tone generating means for facsimile reproduction system
US4259694A (en) * 1979-08-24 1981-03-31 Xerox Corporation Electronic rescreen technique for halftone pictures
US4554593A (en) * 1981-01-02 1985-11-19 International Business Machines Corporation Universal thresholder/discriminator
US4468705A (en) * 1981-12-07 1984-08-28 Exxon Research And Engineering Co. Data transition enhancement
US4633327A (en) * 1983-11-10 1986-12-30 Xerox Corporation Enhancement halftoning
US4638369A (en) * 1984-09-04 1987-01-20 Xerox Corporation Edge extraction technique
JPS61290865A (ja) * 1985-06-19 1986-12-20 Ricoh Co Ltd 中間調デジタル画像処理装置
US4782398A (en) * 1986-02-14 1988-11-01 Canon Kabushiki Kaisha Image processing apparatus
FR2604582B1 (fr) * 1986-09-30 1989-01-06 Bertin & Cie Procede pour transformer une image initiale de type video a multiples niveaux de gris en une image binaire
US4730221A (en) * 1986-10-16 1988-03-08 Xerox Corporation Screening techniques by identification of constant grey components
US5125045A (en) * 1987-11-20 1992-06-23 Hitachi, Ltd. Image processing system
US4926267A (en) * 1989-05-26 1990-05-15 Nynex Corporation Reproduction of halftone original with reduced moire
US5053887A (en) * 1989-06-27 1991-10-01 Ibm Corporation Technique for producing a fine grained dithered halftone image having an increased number of gray levels
CA2028092C (en) * 1989-10-23 1996-08-06 Yuji Tanaka Binary image processing apparatus

Also Published As

Publication number Publication date
JP3327617B2 (ja) 2002-09-24
US5341224A (en) 1994-08-23
EP0566300A1 (de) 1993-10-20
DE69306847T2 (de) 1997-06-26
JPH0622137A (ja) 1994-01-28
EP0566300B1 (de) 1996-12-27

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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