DE69327917T2 - Farbbilderzeugungsgerät unter Benutzung eines Farb-plus-Grauton Farbmodels - Google Patents

Farbbilderzeugungsgerät unter Benutzung eines Farb-plus-Grauton Farbmodels

Info

Publication number
DE69327917T2
DE69327917T2 DE69327917T DE69327917T DE69327917T2 DE 69327917 T2 DE69327917 T2 DE 69327917T2 DE 69327917 T DE69327917 T DE 69327917T DE 69327917 T DE69327917 T DE 69327917T DE 69327917 T2 DE69327917 T2 DE 69327917T2
Authority
DE
Germany
Prior art keywords
color
image forming
forming apparatus
gray tone
model
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
DE69327917T
Other languages
English (en)
Other versions
DE69327917D1 (de
Inventor
Paul H Dillinger
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 DE69327917D1 publication Critical patent/DE69327917D1/de
Application granted granted Critical
Publication of DE69327917T2 publication Critical patent/DE69327917T2/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
    • 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
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • 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
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/6016—Conversion to subtractive colour signals
    • 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
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/6016—Conversion to subtractive colour signals
    • H04N1/6022—Generating a fourth subtractive colour signal, e.g. under colour removal, black masking
    • 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
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/6058—Reduction of colour to a range of reproducible colours, e.g. to ink- reproducible colour gamut

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
  • Color Image Communication Systems (AREA)
DE69327917T 1992-05-04 1993-04-30 Farbbilderzeugungsgerät unter Benutzung eines Farb-plus-Grauton Farbmodels Expired - Fee Related DE69327917T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/878,931 US5377024A (en) 1992-05-04 1992-05-04 Apparatus for forming color images using a hue-plus-gray color model

Publications (2)

Publication Number Publication Date
DE69327917D1 DE69327917D1 (de) 2000-04-06
DE69327917T2 true DE69327917T2 (de) 2000-11-02

Family

ID=25373110

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69332152T Expired - Fee Related DE69332152T2 (de) 1992-05-04 1993-04-30 Farbbilderzeugungssystem
DE69327917T Expired - Fee Related DE69327917T2 (de) 1992-05-04 1993-04-30 Farbbilderzeugungsgerät unter Benutzung eines Farb-plus-Grauton Farbmodels

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69332152T Expired - Fee Related DE69332152T2 (de) 1992-05-04 1993-04-30 Farbbilderzeugungssystem

Country Status (4)

Country Link
US (2) US5377024A (de)
EP (2) EP0569206B1 (de)
JP (1) JP3375176B2 (de)
DE (2) DE69332152T2 (de)

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US6494851B1 (en) 2000-04-19 2002-12-17 James Becher Real time, dry mechanical relaxation station and physical therapy device simulating human application of massage and wet hydrotherapy
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US7623706B1 (en) * 2000-09-29 2009-11-24 Hewlett-Packard Development Company, L.P. Reduction of chromatic bleeding artifacts in images containing subsampled chrominance values
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US6832007B1 (en) * 2000-11-21 2004-12-14 Xerox Corporation Method and system for compensating for scaling artifacts in mixed raster content (MRC) representations
US6386670B1 (en) * 2001-01-30 2002-05-14 Lexmark International, Inc. Printing black and three colors from three color data
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US7054484B2 (en) * 2001-07-14 2006-05-30 Lyford Kirk S Guided color correction system
US6967753B2 (en) * 2001-07-31 2005-11-22 Hewlett-Packard Development Company, L.P. Plane dependent compression
US6588879B2 (en) 2001-12-03 2003-07-08 Supersample Corporation Method for ink jet printing a digital image on a textile, the system and apparatus for practicing the method, and products produced by the system and apparatus using the method
US7355747B2 (en) * 2002-01-18 2008-04-08 Hewlett-Packard Development Company, L.P. System for improving the speed of data processing
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EP1912423A1 (de) * 2006-10-11 2008-04-16 Hewlett-Packard Development Company, L.P. Fehlerdiffusion auf der Basis der Farbtrennung und Halbtonverfahren nach Küppers
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Also Published As

Publication number Publication date
DE69327917D1 (de) 2000-04-06
US5537228A (en) 1996-07-16
JP3375176B2 (ja) 2003-02-10
EP0569206A3 (de) 1994-03-30
DE69332152D1 (de) 2002-08-29
EP0569206A2 (de) 1993-11-10
JPH0638033A (ja) 1994-02-10
EP0739126A3 (de) 1997-01-15
US5377024A (en) 1994-12-27
DE69332152T2 (de) 2002-11-07
EP0569206B1 (de) 2000-03-01
EP0739126B1 (de) 2002-07-24
EP0739126A2 (de) 1996-10-23

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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 CO. (N.D.GES.D.STAATES DELAWARE),

8327 Change in the person/name/address of the patent owner

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

8339 Ceased/non-payment of the annual fee