DE69304745D1 - Verfahren und Gerät zur Erzeugung gleichzeitig abgeleiteter korrelierter digitaler gerasterter Halbtonmuster - Google Patents

Verfahren und Gerät zur Erzeugung gleichzeitig abgeleiteter korrelierter digitaler gerasterter Halbtonmuster

Info

Publication number
DE69304745D1
DE69304745D1 DE69304745T DE69304745T DE69304745D1 DE 69304745 D1 DE69304745 D1 DE 69304745D1 DE 69304745 T DE69304745 T DE 69304745T DE 69304745 T DE69304745 T DE 69304745T DE 69304745 D1 DE69304745 D1 DE 69304745D1
Authority
DE
Germany
Prior art keywords
halftone patterns
digital halftone
generating simultaneously
correlated digital
simultaneously derived
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
DE69304745T
Other languages
English (en)
Other versions
DE69304745T2 (de
Inventor
Lawrence Allen Ray
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of DE69304745D1 publication Critical patent/DE69304745D1/de
Application granted granted Critical
Publication of DE69304745T2 publication Critical patent/DE69304745T2/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
    • H04N1/40—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
DE69304745T 1992-03-10 1993-03-09 Verfahren und Gerät zur Erzeugung gleichzeitig abgeleiteter korrelierter digitaler gerasterter Halbtonmuster Expired - Lifetime DE69304745T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/848,779 US5754311A (en) 1992-03-10 1992-03-10 Method and apparatus for generating simultaneously derived correlated digital halftone patterns

Publications (2)

Publication Number Publication Date
DE69304745D1 true DE69304745D1 (de) 1996-10-24
DE69304745T2 DE69304745T2 (de) 1997-05-07

Family

ID=25304244

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69304745T Expired - Lifetime DE69304745T2 (de) 1992-03-10 1993-03-09 Verfahren und Gerät zur Erzeugung gleichzeitig abgeleiteter korrelierter digitaler gerasterter Halbtonmuster

Country Status (4)

Country Link
US (1) US5754311A (de)
EP (1) EP0560285B1 (de)
JP (1) JP3630699B2 (de)
DE (1) DE69304745T2 (de)

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US5526021A (en) * 1993-01-11 1996-06-11 Canon Inc. Dithering optimization techniques
DE69417832T2 (de) * 1993-09-28 1999-08-12 Hewlett-Packard Co., Palo Alto, Calif. Digitale Halbtonrasterwiedergabe eines Grautonbildes mit frequenzabhängiger diagonaler Korrelation
EP0650289A1 (de) * 1993-10-04 1995-04-26 Eastman Kodak Company Verfahren und Gerät zur Erzeugung von Halbtonmustern für eine Multipegelausgabeeinrichtung
GB9325263D0 (en) * 1993-12-10 1994-02-16 Crosfield Electronics Ltd Method and apparatus for generating an output device control signal
US5579457A (en) * 1994-07-29 1996-11-26 The Harlequin Group Ltd. Image display apparatus and method using irregularly placed curving structures
KR970705285A (ko) * 1994-07-29 1997-09-06 할리퀸 그룹 리미티드 균일하게 분포된 농도 클러스터를 사용하는 이미지 디스플레이 방법 및 장치(image display using evenly distributed intensity clusters)
SG73959A1 (en) * 1994-08-24 2000-07-18 Seiko Epson Corp Multiple tonal range image processing system
US5703695A (en) * 1995-03-20 1997-12-30 Nguyen; Hugh P. Multi-dot dither matrix generation
US5696602A (en) * 1995-08-31 1997-12-09 Lexmark International, Inc. Method for halftoning using stochastic dithering with minimum density variance
JPH09307758A (ja) * 1996-05-15 1997-11-28 Ricoh Co Ltd 階調処理方式，誤差拡散階調処理方式，画像符号化方式およびそれらを用いた画像処理装置
US5898821A (en) * 1997-01-21 1999-04-27 Xerox Corporation Printing system with halftone substitution capability
US5946452A (en) * 1997-02-14 1999-08-31 Eastman Kodak Company Partially correlated minimum visibility halftone patterns for digital printers
KR100234316B1 (ko) * 1997-04-04 1999-12-15 윤종용 링잉노이즈 감소를 위한 신호적응 필터링 방법 및 신호적응필터
US6122407A (en) * 1997-12-19 2000-09-19 Electronics For Imaging, Inc. Method and apparatus for producing threshold arrays using variance minimization and sparse image calculations
US6597473B1 (en) * 1999-11-29 2003-07-22 Xerox Corporation Method to obtain consistent image quality measurements from different image input devices
JP2001157056A (ja) 1999-11-30 2001-06-08 Fujitsu Ltd ハーフトーン化方法およびハーフトーン化装置並びにハーフトーン化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
US6791718B1 (en) * 2000-06-14 2004-09-14 Hewlett-Packard Development Company, L.P. Halftone printing with dither matrices generated by using cluster filters
JP4404457B2 (ja) * 2000-07-21 2010-01-27 富士通株式会社 ハーフトーン化方法およびハーフトーン化装置並びにハーフトーン化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
JP4124580B2 (ja) * 2001-06-12 2008-07-23 富士フイルム株式会社 階調画像作成用閾値配列決定方法
US7064869B2 (en) * 2001-06-22 2006-06-20 Eastman Kodak Company Method for halftoning a multi-channel digital color image having at least one group of similar color channels
US7050559B2 (en) * 2001-12-21 2006-05-23 Bellsouth Intellectual Property Corporation Monitoring a call forwarded to a network-based voice mail system
US20040085553A1 (en) * 2002-10-30 2004-05-06 Eastman Kodak Company Multitoning a digital image having at least one group of similar colors channels
US7253927B2 (en) 2003-10-15 2007-08-07 Benq Corporation Method of adjusting halftone image dot positions for improving print quality
US7511857B2 (en) * 2004-01-26 2009-03-31 Hewlett-Packard Development Company, L.P. Halftoning method and system
US7369276B2 (en) 2004-03-05 2008-05-06 Eastman Kodak Company Multi-level halftoning providing improved texture uniformity
US20060197989A1 (en) * 2005-03-07 2006-09-07 Toshiba Corporation Multi-configured halftone system
US20080117464A1 (en) * 2006-11-20 2008-05-22 Monotype Imaging, Inc. Method and system for reducing auto-moire artifacts in periodic halftone screening
US20090034008A1 (en) * 2007-08-03 2009-02-05 Lawrence Croft Method for generating stochastic dither matrix
US20090034006A1 (en) * 2007-08-03 2009-02-05 Blondal Daniel J Stochastic halftone images based on screening parameters
US8018623B2 (en) * 2008-02-29 2011-09-13 Eastman Kodak Company Multi-level halftoning providing reduced error diffusion artifacts

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775559A (en) * 1970-11-12 1973-11-27 Xerox Corp Aperture designs for facsimile scanning apparatus
US4343037A (en) * 1979-06-15 1982-08-03 Redifon Simulation Limited Visual display systems of the computer generated image type
DE3067060D1 (en) * 1979-12-20 1984-04-19 Cambridge Consultants Apparatus and method for generating a dispersed dot half tone picture from a continuous tone picture
US4514818A (en) * 1980-12-04 1985-04-30 Quantel Limited Video image creation system which simulates drafting tool
US5177795A (en) * 1985-11-05 1993-01-05 Canon Kabushiki Kaisha Image processing apparatus
US4805030A (en) * 1986-01-27 1989-02-14 Fuji Photo Film Co., Ltd. Method of image signal encoding by orthogonal transformation
US4780761A (en) * 1987-06-02 1988-10-25 Eastman Kodak Company Digital image compression and transmission system visually weighted transform coefficients
EP0304289A3 (de) * 1987-08-18 1991-03-13 Kabushiki Kaisha Toshiba Halbtonbildreproduktionsverfahren und -Gerät
US4920501A (en) * 1988-10-19 1990-04-24 Eastman Kodak Company Digital halftoning with minimum visual modulation patterns
US5200840A (en) * 1989-07-07 1993-04-06 Kabushiki Kaisha Toshiba Image processing apparatus
US5214517A (en) * 1990-02-07 1993-05-25 Eastman Kodak Company Digital halftoning with correlated minimum visual modulation patterns

Also Published As

Publication number Publication date
US5754311A (en) 1998-05-19
DE69304745T2 (de) 1997-05-07
EP0560285A1 (de) 1993-09-15
EP0560285B1 (de) 1996-09-18
JP3630699B2 (ja) 2005-03-16
JPH066586A (ja) 1994-01-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: EASTMAN KODAK CO., ROCHESTER, N.Y., US