JP4642411B2 - 黒色の選択的強調 - Google Patents

黒色の選択的強調 Download PDF

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Publication number
JP4642411B2
JP4642411B2 JP2004248200A JP2004248200A JP4642411B2 JP 4642411 B2 JP4642411 B2 JP 4642411B2 JP 2004248200 A JP2004248200 A JP 2004248200A JP 2004248200 A JP2004248200 A JP 2004248200A JP 4642411 B2 JP4642411 B2 JP 4642411B2
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Japan
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JP2004248200A
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Japanese (ja)
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JP2005081838A (ja
JP2005081838A5 (enExample
Inventor
エム クルーン スティーブン
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Xerox Corp
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Xerox Corp
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    • 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
    • H04N1/58—Edge or detail enhancement; Noise or error suppression, e.g. colour misregistration correction

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color, Gradation (AREA)
  • Ink Jet (AREA)
  • Image Processing (AREA)
  • Color Image Communication Systems (AREA)
JP2004248200A 2003-09-05 2004-08-27 黒色の選択的強調 Expired - Fee Related JP4642411B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/657,020 US6871928B1 (en) 2003-09-05 2003-09-05 Selective enhancement of black

Publications (3)

Publication Number Publication Date
JP2005081838A JP2005081838A (ja) 2005-03-31
JP2005081838A5 JP2005081838A5 (enExample) 2007-10-11
JP4642411B2 true JP4642411B2 (ja) 2011-03-02

Family

ID=34136721

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004248200A Expired - Fee Related JP4642411B2 (ja) 2003-09-05 2004-08-27 黒色の選択的強調

Country Status (4)

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US (1) US6871928B1 (enExample)
EP (1) EP1513335B1 (enExample)
JP (1) JP4642411B2 (enExample)
DE (1) DE602004031316D1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8830520B2 (en) 2010-09-17 2014-09-09 Xerox Corporation System and method for enhancing the density of black

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4953015A (en) * 1987-12-14 1990-08-28 Sharp Kabushiki Kaisha Method for printing a color image which includes black ink
JP2539867B2 (ja) * 1987-12-14 1996-10-02 シャープ株式会社 プリント方法
JP2651201B2 (ja) * 1988-06-23 1997-09-10 シャープ株式会社 カラープリンタ出力方式
JPH0696296B2 (ja) * 1988-02-12 1994-11-30 シャープ株式会社 カラープリンタ出力方法
US5241396A (en) * 1991-09-16 1993-08-31 Xerox Corporation Color printing yielding a dense black image
US5428377A (en) * 1992-08-11 1995-06-27 Xerox Corporation Color spatial filtering for thermal ink jet printers
WO1996004748A1 (en) * 1994-07-29 1996-02-15 The Harlequin Group Limited Image display using evenly distributed intensity clusters
US5848225A (en) * 1996-12-04 1998-12-08 Xerox Corporation Color bitmap merging of black objects using separation maximum value clipping
US6122407A (en) * 1997-12-19 2000-09-19 Electronics For Imaging, Inc. Method and apparatus for producing threshold arrays using variance minimization and sparse image calculations
US6290330B1 (en) * 1999-12-03 2001-09-18 Xerox Corporation Maintaining black edge quality in liquid ink printing
US7046389B2 (en) * 2001-04-04 2006-05-16 Hewlett-Packard Development Company, L.P. Variable density under/overprinting maps for improving print quality
US7199888B2 (en) 2001-06-25 2007-04-03 Xerox Corporation Method for enhanced black in draft mode

Also Published As

Publication number Publication date
US6871928B1 (en) 2005-03-29
US20050052522A1 (en) 2005-03-10
EP1513335A3 (en) 2005-11-30
JP2005081838A (ja) 2005-03-31
DE602004031316D1 (de) 2011-03-24
EP1513335B1 (en) 2011-02-09
EP1513335A2 (en) 2005-03-09

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