DE69817473D1 - Halbtonrasterungssystem - Google Patents

Halbtonrasterungssystem

Info

Publication number
DE69817473D1
DE69817473D1 DE69817473T DE69817473T DE69817473D1 DE 69817473 D1 DE69817473 D1 DE 69817473D1 DE 69817473 T DE69817473 T DE 69817473T DE 69817473 T DE69817473 T DE 69817473T DE 69817473 D1 DE69817473 D1 DE 69817473D1
Authority
DE
Germany
Prior art keywords
halbtonrasterungssystem
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
DE69817473T
Other languages
English (en)
Other versions
DE69817473T2 (de
Inventor
Qian Lin
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.)
Hewlett Packard Development Co LP
Original Assignee
Hewlett Packard 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 Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of DE69817473D1 publication Critical patent/DE69817473D1/de
Application granted granted Critical
Publication of DE69817473T2 publication Critical patent/DE69817473T2/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
    • 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
DE69817473T 1997-06-30 1998-06-04 Halbtonrasterungssystem Expired - Lifetime DE69817473T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US884750 1997-06-30
US08/884,750 US5970178A (en) 1997-06-30 1997-06-30 Adaptive halftoning based on image content

Publications (2)

Publication Number Publication Date
DE69817473D1 true DE69817473D1 (de) 2003-10-02
DE69817473T2 DE69817473T2 (de) 2004-06-24

Family

ID=25385312

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69817473T Expired - Lifetime DE69817473T2 (de) 1997-06-30 1998-06-04 Halbtonrasterungssystem

Country Status (4)

Country Link
US (1) US5970178A (de)
EP (1) EP0889641B1 (de)
JP (2) JPH1188686A (de)
DE (1) DE69817473T2 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6002804A (en) 1998-03-26 1999-12-14 Hewlett-Packard Company Tone dependent variable halftoning with adjustable algorithm selection
TW384612B (en) * 1998-08-19 2000-03-11 Acer Peripherals Inc Image processing system and method capable of converting gray-level images into binary images
NL1012708C2 (nl) * 1999-07-26 2001-01-29 Ocu Technologies B V Afdrukken van digitale kleurenbeelden met locaal aangepaste halftoning.
US6443549B1 (en) * 2000-02-04 2002-09-03 Scitex Digital Printing, Inc. Continuous tone reproduction using improved ink jet droplet dispersion techniques
US7158262B2 (en) * 2000-02-17 2007-01-02 Hewlett-Packard Development Company, L.P. Multi-level error diffusion apparatus and method of using same
US6760126B1 (en) 2000-06-20 2004-07-06 Hewlett-Packard Development Company, L.P. Adaptive halftoning method and apparatus
US20050030586A1 (en) * 2003-07-23 2005-02-10 Jincheng Huang Adaptive halftone scheme to preserve image smoothness and sharpness by utilizing X-label
US9292904B2 (en) 2004-01-16 2016-03-22 Nvidia Corporation Video image processing with parallel processing
US7308159B2 (en) * 2004-01-16 2007-12-11 Enuclia Semiconductor, Inc. Image processing system and method with dynamically controlled pixel processing
KR100611981B1 (ko) 2004-05-01 2006-08-11 삼성전자주식회사 이미지의 하프토닝 방법 및 장치
US20060152627A1 (en) * 2005-01-13 2006-07-13 Ruggiero Carl J Video processing system and method with dynamic tag architecture
US7869666B2 (en) 2005-01-13 2011-01-11 Nvidia Corporation Video processing system and method with dynamic tag architecture
US7853044B2 (en) * 2005-01-13 2010-12-14 Nvidia Corporation Video processing system and method with dynamic tag architecture
US7738740B2 (en) * 2005-01-13 2010-06-15 Nvidia Corporation Video processing system and method with dynamic tag architecture
US7620243B2 (en) * 2005-12-14 2009-11-17 Seiko Epson Corporation Noise reduction for primary tones for image replication systems
US8848249B2 (en) 2011-07-29 2014-09-30 Hewlett-Packard Development Company, L.P. Creating an image to be printed using halftone blending
US9760971B2 (en) 2013-06-13 2017-09-12 Hewlett-Packard Development Company, L.P. Establish image pipeline
US9332155B2 (en) 2014-02-04 2016-05-03 Ricoh Company, Ltd. Digital image halftone conversion with selective enhancement
EP3368972B1 (de) * 2015-10-30 2021-04-14 Hewlett-Packard Development Company, L.P. Halbtonrasterung von objektdaten für ein dreidimensionales objekt
CN108510474B (zh) * 2018-03-09 2021-07-06 上海烟草集团有限责任公司 烟叶图像质量的评价方法、系统、存储器、及电子设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4974097A (en) * 1986-11-18 1990-11-27 Canon Kabushiki Kaisha Data communication apparatus
JPH07264402A (ja) * 1994-03-18 1995-10-13 Dainippon Screen Mfg Co Ltd 印刷版画像の作成方法
US5777759A (en) * 1995-04-28 1998-07-07 Canon Kabushiki Kaisha Image processing method and apparatus
US5701366A (en) * 1996-09-04 1997-12-23 Canon Information Systems, Inc. Halftoning with gradient-based selection of dither matrices

Also Published As

Publication number Publication date
EP0889641A2 (de) 1999-01-07
JP4740987B2 (ja) 2011-08-03
EP0889641A3 (de) 1999-03-03
JP2009005397A (ja) 2009-01-08
JPH1188686A (ja) 1999-03-30
US5970178A (en) 1999-10-19
EP0889641B1 (de) 2003-08-27
DE69817473T2 (de) 2004-06-24

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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: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, TE