DE69622614T2 - Verfahren zur adaptiven Fehlerdiffusion - Google Patents

Verfahren zur adaptiven Fehlerdiffusion

Info

Publication number
DE69622614T2
DE69622614T2 DE69622614T DE69622614T DE69622614T2 DE 69622614 T2 DE69622614 T2 DE 69622614T2 DE 69622614 T DE69622614 T DE 69622614T DE 69622614 T DE69622614 T DE 69622614T DE 69622614 T2 DE69622614 T2 DE 69622614T2
Authority
DE
Germany
Prior art keywords
error diffusion
diffusion method
adaptive error
adaptive
error
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
DE69622614T
Other languages
English (en)
Other versions
DE69622614D1 (de
Inventor
Douglas W Couwenhoven
Kevin E Spaulding
Rodney L Miller
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
Application granted granted Critical
Publication of DE69622614D1 publication Critical patent/DE69622614D1/de
Publication of DE69622614T2 publication Critical patent/DE69622614T2/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
    • 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
    • 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
DE69622614T 1995-03-23 1996-03-20 Verfahren zur adaptiven Fehlerdiffusion Expired - Lifetime DE69622614T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/409,554 US5757517A (en) 1995-03-23 1995-03-23 Adaptive error diffusion method

Publications (2)

Publication Number Publication Date
DE69622614D1 DE69622614D1 (de) 2002-09-05
DE69622614T2 true DE69622614T2 (de) 2003-03-27

Family

ID=23621001

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69622614T Expired - Lifetime DE69622614T2 (de) 1995-03-23 1996-03-20 Verfahren zur adaptiven Fehlerdiffusion

Country Status (4)

Country Link
US (1) US5757517A (de)
EP (1) EP0734150B1 (de)
JP (1) JPH08279906A (de)
DE (1) DE69622614T2 (de)

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* Cited by examiner, † Cited by third party
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JP3354741B2 (ja) * 1995-04-17 2002-12-09 富士通株式会社 中間調表示方法及び中間調表示装置
US5901245A (en) * 1997-01-23 1999-05-04 Eastman Kodak Company Method and system for detection and characterization of open space in digital images
US6771832B1 (en) * 1997-07-29 2004-08-03 Panasonic Communications Co., Ltd. Image processor for processing an image with an error diffusion process and image processing method for processing an image with an error diffusion process
JP3999406B2 (ja) * 1999-05-18 2007-10-31 インターナショナル・ビジネス・マシーンズ・コーポレーション 拡散率の適応化を用いた誤差拡散方法及び装置
US6891641B1 (en) * 1999-08-27 2005-05-10 Minolta Co., Ltd. Method and apparatus for converting number of colors and processing image data
US6965389B1 (en) * 1999-09-08 2005-11-15 Victor Company Of Japan, Ltd. Image displaying with multi-gradation processing
US6753978B1 (en) 1999-09-22 2004-06-22 Sharp Laboratories Of America, Inc. Higher order error diffusion of digital halftoning
US6671071B1 (en) * 1999-10-19 2003-12-30 Xerox Corporation Threshold bias circuits for enhanced color error diffusion
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
US6707576B1 (en) 1999-12-02 2004-03-16 Sharp Laboratories Of America, Inc. Noise modulation error diffusion of digital halftoning
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
KR20020095350A (ko) * 2001-06-14 2002-12-26 엘지전자 주식회사 패턴 적응형 오차확산 장치
KR100544193B1 (ko) 2003-07-09 2006-01-23 삼성전자주식회사 오차 확산계수의 결정방법 및 장치
JP4526252B2 (ja) * 2003-08-26 2010-08-18 富士通株式会社 光半導体装置及びその製造方法
US7170434B2 (en) * 2004-01-16 2007-01-30 Cirrus Logic, Inc. Look-ahead delta sigma modulator with quantization using natural and pattern loop filter responses
US7084798B2 (en) 2004-01-16 2006-08-01 Cirrus Logic, Inc. Look-ahead delta sigma modulators with quantizer input approximations
US7187312B2 (en) * 2004-01-16 2007-03-06 Cirrus Logic, Inc. Look-ahead delta sigma modulator having an infinite impulse response filter with multiple look-ahead outputs
US6879275B1 (en) * 2004-01-16 2005-04-12 Cirrus Logic, Inc. Signal processing with a look-ahead modulator having time weighted error values
US7196647B2 (en) * 2004-01-16 2007-03-27 Cirrus Logic, Inc. Signal processing with look-ahead modulator noise quantization minimization
US7009543B2 (en) * 2004-01-16 2006-03-07 Cirrus Logic, Inc. Multiple non-monotonic quantizer regions for noise shaping
US7138934B2 (en) * 2004-01-26 2006-11-21 Cirrus Logic, Inc. Pattern biasing for look-ahead delta sigma modulators
US7148830B2 (en) * 2004-01-26 2006-12-12 Cirrus Logic, Inc. Look-ahead delta sigma modulator with pruning of output candidate vectors using quantization error minimization pruning techniques
US7362472B2 (en) * 2004-03-05 2008-04-22 Eastman Kodak Company Color error diffusion
US7081843B2 (en) * 2004-07-19 2006-07-25 Cirrus Logic, Inc. Overload protection for look-ahead delta sigma modulators
US7639887B2 (en) 2004-12-14 2009-12-29 Intel Corporation Error diffusion-based image processing
US7229097B2 (en) * 2005-01-18 2007-06-12 Delphi Technologies, Inc. Snap-in capsule for steering columns
FR2888701B1 (fr) * 2005-07-13 2007-09-14 Sagem Comm Procede et systeme de tramage en couleur par diffusion d'erreur vectorielle ved
US20070070427A1 (en) * 2005-08-18 2007-03-29 Lexmark International, Inc. Systems and methods for selective dithering using pixel classification
CN100372362C (zh) * 2005-10-14 2008-02-27 四川世纪双虹显示器件有限公司 一种重建等离子显示器暗区灰度级的实时图像处理器
US7564589B2 (en) * 2006-08-31 2009-07-21 Eastman Kodak Company Color error diffusion with error signal offsets
EP2187616A1 (de) * 2008-11-14 2010-05-19 EMPA Dübendorf Bilddatenverarbeitung für den Druck
US7982916B2 (en) * 2008-11-21 2011-07-19 Eastman Kodak Company Color error diffusion with error signal offset
WO2011023656A2 (en) * 2009-08-25 2011-03-03 Empa Fm-halftoning with surrounding-influenced quantization and lazy propagation

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4654721A (en) * 1985-04-12 1987-03-31 International Business Machines Corporation System for reproducing multi-level digital images on a bi-level printer of fixed dot size
JP2572629B2 (ja) * 1988-05-16 1997-01-16 株式会社ゼクセル 車両用空調制御装置
US5051844A (en) * 1989-01-30 1991-09-24 Eastman Kodak Company Digital halftoning with error diffusion
US5309526A (en) * 1989-05-04 1994-05-03 At&T Bell Laboratories Image processing system
US5070413A (en) * 1989-10-10 1991-12-03 Eastman Kodak Company Color digital halftoning with vector error diffusion
US5208684A (en) * 1990-04-26 1993-05-04 Fujitsu Limited Half-tone image processing system
JP3030981B2 (ja) * 1991-09-26 2000-04-10 富士ゼロックス株式会社 中間調画像再現方法及びその装置
US5473439A (en) * 1992-10-23 1995-12-05 At&T Corp. Model-based halftoning of color images
US5325211A (en) * 1993-01-04 1994-06-28 Xerox Corporation Error diffusion with output and input based feedback

Also Published As

Publication number Publication date
JPH08279906A (ja) 1996-10-22
EP0734150A2 (de) 1996-09-25
EP0734150B1 (de) 2002-07-31
EP0734150A3 (de) 1998-03-11
US5757517A (en) 1998-05-26
DE69622614D1 (de) 2002-09-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: BLICKLE, K., DIPL.-ING., PAT.-ASS., 70327 STUTTGAR

8328 Change in the person/name/address of the agent

Representative=s name: DR. KUEHNER, H., RECHTSANW., 70327 STUTTGART