DE69823593D1 - Fehlerdiffusion für Farbhalbtonrasterung mit Verringerung der lokalen Helligkeitsänderung - Google Patents

Fehlerdiffusion für Farbhalbtonrasterung mit Verringerung der lokalen Helligkeitsänderung

Info

Publication number
DE69823593D1
DE69823593D1 DE69823593T DE69823593T DE69823593D1 DE 69823593 D1 DE69823593 D1 DE 69823593D1 DE 69823593 T DE69823593 T DE 69823593T DE 69823593 T DE69823593 T DE 69823593T DE 69823593 D1 DE69823593 D1 DE 69823593D1
Authority
DE
Germany
Prior art keywords
brightness
reduction
error diffusion
local change
color halftone
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
DE69823593T
Other languages
English (en)
Other versions
DE69823593T2 (de
Inventor
Doron Shaked
Nur Arad
Andrew Fitzhugh
Irwin Sobel
Michael D Mcguire
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 DE69823593D1 publication Critical patent/DE69823593D1/de
Application granted granted Critical
Publication of DE69823593T2 publication Critical patent/DE69823593T2/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
    • H04N1/46—Colour picture communication systems
    • H04N1/52—Circuits or arrangements for halftone screening

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color Image Communication Systems (AREA)
  • Processing Of Color Television Signals (AREA)
DE69823593T 1997-07-31 1998-07-27 Fehlerdiffusion für Farbhalbtonrasterung mit Verringerung der lokalen Helligkeitsänderung Expired - Fee Related DE69823593T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US903899 1997-07-31
US08/903,899 US5991438A (en) 1997-07-31 1997-07-31 Color halftone error-diffusion with local brightness variation reduction

Publications (2)

Publication Number Publication Date
DE69823593D1 true DE69823593D1 (de) 2004-06-09
DE69823593T2 DE69823593T2 (de) 2005-04-07

Family

ID=25418226

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69823593T Expired - Fee Related DE69823593T2 (de) 1997-07-31 1998-07-27 Fehlerdiffusion für Farbhalbtonrasterung mit Verringerung der lokalen Helligkeitsänderung

Country Status (4)

Country Link
US (1) US5991438A (de)
EP (1) EP0895408B1 (de)
JP (1) JPH11168635A (de)
DE (1) DE69823593T2 (de)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6304333B1 (en) * 1998-08-19 2001-10-16 Hewlett-Packard Company Apparatus and method of performing dithering in a simplex in color space
US6219838B1 (en) * 1998-08-24 2001-04-17 Sharewave, Inc. Dithering logic for the display of video information
KR100561453B1 (ko) * 1999-04-21 2006-03-16 삼성전자주식회사 4색 칼라 인쇄를 위한 적응형 칼라 중간조 처리 방법
US6637851B2 (en) 2001-03-09 2003-10-28 Agfa-Gevaert Color halftoning for printing with multiple inks
DE60135729D1 (de) * 2001-03-09 2008-10-23 Agfa Graphics Nv Verbesserte Farbhalbtonerzeugung zum Drucken mit mehreren Tinten
US7123277B2 (en) 2001-05-09 2006-10-17 Clairvoyante, Inc. Conversion of a sub-pixel format data to another sub-pixel data format
US7221381B2 (en) 2001-05-09 2007-05-22 Clairvoyante, Inc Methods and systems for sub-pixel rendering with gamma adjustment
US7079289B2 (en) * 2001-10-01 2006-07-18 Xerox Corporation Rank-order error diffusion image processing
US7755652B2 (en) 2002-01-07 2010-07-13 Samsung Electronics Co., Ltd. Color flat panel display sub-pixel rendering and driver configuration for sub-pixel arrangements with split sub-pixels
US7583279B2 (en) * 2004-04-09 2009-09-01 Samsung Electronics Co., Ltd. Subpixel layouts and arrangements for high brightness displays
US7492379B2 (en) 2002-01-07 2009-02-17 Samsung Electronics Co., Ltd. Color flat panel display sub-pixel arrangements and layouts for sub-pixel rendering with increased modulation transfer function response
US20040051724A1 (en) 2002-09-13 2004-03-18 Elliott Candice Hellen Brown Four color arrangements of emitters for subpixel rendering
US7417648B2 (en) * 2002-01-07 2008-08-26 Samsung Electronics Co. Ltd., Color flat panel display sub-pixel arrangements and layouts for sub-pixel rendering with split blue sub-pixels
JP2004072743A (ja) * 2002-08-05 2004-03-04 Oce Technol Bv 印刷システムにおける色の表現方法
US7230584B2 (en) 2003-05-20 2007-06-12 Clairvoyante, Inc Projector systems with reduced flicker
KR100547159B1 (ko) * 2003-12-02 2006-01-26 삼성전자주식회사 Ｃｍｙｋｒｇｂｗ 큐빅 공간에서의 면적비를 이용한오차확산 방법 및 장치
US7430720B2 (en) * 2004-03-05 2008-09-30 America Online, Inc. System and method for preventing screen-scrapers from extracting user screen names
US7362472B2 (en) * 2004-03-05 2008-04-22 Eastman Kodak Company Color error diffusion
US7248268B2 (en) 2004-04-09 2007-07-24 Clairvoyante, Inc Subpixel rendering filters for high brightness subpixel layouts
US7705855B2 (en) * 2005-06-15 2010-04-27 Samsung Electronics Co., Ltd. Bichromatic display
JP4510743B2 (ja) * 2005-10-17 2010-07-28 Ｋｄｄｉ株式会社 割符画像生成方法および装置、割符画像生成用プログラムおよび秘密画像復号方法
US7876341B2 (en) 2006-08-28 2011-01-25 Samsung Electronics Co., Ltd. Subpixel layouts for high brightness displays and systems
US8018476B2 (en) 2006-08-28 2011-09-13 Samsung Electronics Co., Ltd. Subpixel layouts for high brightness displays and systems
US20080291212A1 (en) * 2007-05-23 2008-11-27 Dean Robert Gary Anderson As Trustee Of D/L Anderson Family Trust Software for creating engraved images
US20080310747A1 (en) * 2007-05-23 2008-12-18 Dean Robert Gary Anderson As Trustee Of D/L Anderson Family Trust Software for creating engraved images
WO2008147527A1 (en) * 2007-05-23 2008-12-04 Dean Robert Gary Anderson Software for creating engraved images
US8294952B2 (en) * 2009-11-05 2012-10-23 Xerox Corporation Memory efficient hierarchical error diffusion with color consistency constraints
US8697753B1 (en) 2013-02-07 2014-04-15 Polichem Sa Method of treating onychomycosis

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5070413A (en) * 1989-10-10 1991-12-03 Eastman Kodak Company Color digital halftoning with vector error diffusion
KR960005016B1 (ko) * 1992-11-26 1996-04-18 삼성전자주식회사 칼라 프린터에 있어서 적응칼라 에러 확산방법 및 회로
US5621546A (en) * 1993-11-02 1997-04-15 Xerox Corporation Method and apparatus for vector error diffusion with output color control
US5734369A (en) * 1995-04-14 1998-03-31 Nvidia Corporation Method and apparatus for dithering images in a digital display system
US5883973A (en) * 1996-02-20 1999-03-16 Seiko Epson Corporation Method and apparatus for processing a document by segmentation into text and image areas

Also Published As

Publication number Publication date
EP0895408B1 (de) 2004-05-06
US5991438A (en) 1999-11-23
JPH11168635A (ja) 1999-06-22
EP0895408A3 (de) 2000-02-02
EP0895408A2 (de) 1999-02-03
DE69823593T2 (de) 2005-04-07

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

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

8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee