DE69328508D1 - Farbsignalumwandlungseinrichtung - Google Patents

Farbsignalumwandlungseinrichtung

Info

Publication number
DE69328508D1
DE69328508D1 DE69328508T DE69328508T DE69328508D1 DE 69328508 D1 DE69328508 D1 DE 69328508D1 DE 69328508 T DE69328508 T DE 69328508T DE 69328508 T DE69328508 T DE 69328508T DE 69328508 D1 DE69328508 D1 DE 69328508D1
Authority
DE
Germany
Prior art keywords
color signal
signal converter
converter
color
signal
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
DE69328508T
Other languages
English (en)
Other versions
DE69328508T2 (de
Inventor
Hiroaki Ikegami
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox Co Ltd
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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Application granted granted Critical
Publication of DE69328508D1 publication Critical patent/DE69328508D1/de
Publication of DE69328508T2 publication Critical patent/DE69328508T2/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
    • H04N1/56—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
    • H04N1/6025—Generating a fourth subtractive colour signal, e.g. under colour removal, black masking using look-up tables
    • 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
    • H04N1/6027—Correction or control of colour gradation or colour contrast

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Image Communication Systems (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
DE1993628508 1992-02-14 1993-02-12 Farbsignalumwandlungseinrichtung Expired - Fee Related DE69328508T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4059224A JP2906814B2 (ja) 1992-02-14 1992-02-14 色信号変換装置

Publications (2)

Publication Number Publication Date
DE69328508D1 true DE69328508D1 (de) 2000-06-08
DE69328508T2 DE69328508T2 (de) 2000-08-24

Family

ID=13107196

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1993628508 Expired - Fee Related DE69328508T2 (de) 1992-02-14 1993-02-12 Farbsignalumwandlungseinrichtung

Country Status (3)

Country Link
EP (1) EP0555866B1 (de)
JP (1) JP2906814B2 (de)
DE (1) DE69328508T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2275584B (en) * 1993-02-25 1997-05-14 Quantel Ltd An image processing system
GB2277220B (en) * 1993-04-14 1997-11-05 Quantel Ltd An apparatus for and method of image processing
JPH07222011A (ja) 1994-01-31 1995-08-18 Canon Inc 色再現範囲表現方法及び画像処理方法及び装置
US5666437A (en) * 1996-08-02 1997-09-09 Hewlett-Packard Company Apparatus for routing interpolator input data by performing a selective two's complement based on sets of lower and higher order bits of input data
US5717507A (en) * 1996-08-02 1998-02-10 Hewlett-Packard Company Apparatus for generating interpolator input data
JP4241720B2 (ja) * 2005-11-28 2009-03-18 ソニー株式会社 積和演算回路
JP5159115B2 (ja) * 2007-01-30 2013-03-06 キヤノン株式会社 画像処理装置及び画像処理方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2053619B (en) * 1979-07-03 1983-11-02 Crosfield Electronics Ltd Interpolation methods and apparatus

Also Published As

Publication number Publication date
DE69328508T2 (de) 2000-08-24
EP0555866A1 (de) 1993-08-18
JP2906814B2 (ja) 1999-06-21
EP0555866B1 (de) 2000-05-03
JPH05227421A (ja) 1993-09-03

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee