JP7207977B2 - 画像処理装置、画像処理方法ならびにプログラム - Google Patents

画像処理装置、画像処理方法ならびにプログラム Download PDF

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Publication number
JP7207977B2
JP7207977B2 JP2018225489A JP2018225489A JP7207977B2 JP 7207977 B2 JP7207977 B2 JP 7207977B2 JP 2018225489 A JP2018225489 A JP 2018225489A JP 2018225489 A JP2018225489 A JP 2018225489A JP 7207977 B2 JP7207977 B2 JP 7207977B2
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gray
signal value
color
image data
value
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Japanese (ja)
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JP2020088812A5 (enExample
JP2020088812A (ja
Inventor
麻子 菅原
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Canon Inc
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Canon Inc
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Priority to JP2018225489A priority Critical patent/JP7207977B2/ja
Priority to US16/689,857 priority patent/US11375081B2/en
Publication of JP2020088812A publication Critical patent/JP2020088812A/ja
Publication of JP2020088812A5 publication Critical patent/JP2020088812A5/ja
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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
    • H04N1/40—Picture signal circuits
    • H04N1/40012—Conversion of colour to monochrome
    • 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
    • H04N1/6063—Reduction of colour to a range of reproducible colours, e.g. to ink- reproducible colour gamut dependent on the contents of the image to be reproduced
    • 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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Image Communication Systems (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Record Information Processing For Printing (AREA)
  • Color, Gradation (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Color Electrophotography (AREA)
  • Image Processing (AREA)
JP2018225489A 2018-11-30 2018-11-30 画像処理装置、画像処理方法ならびにプログラム Active JP7207977B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2018225489A JP7207977B2 (ja) 2018-11-30 2018-11-30 画像処理装置、画像処理方法ならびにプログラム
US16/689,857 US11375081B2 (en) 2018-11-30 2019-11-20 Apparatus, method, and storage medium for converting a color image to a monochrome image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018225489A JP7207977B2 (ja) 2018-11-30 2018-11-30 画像処理装置、画像処理方法ならびにプログラム

Publications (3)

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JP2020088812A JP2020088812A (ja) 2020-06-04
JP2020088812A5 JP2020088812A5 (enExample) 2021-12-23
JP7207977B2 true JP7207977B2 (ja) 2023-01-18

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JP2018225489A Active JP7207977B2 (ja) 2018-11-30 2018-11-30 画像処理装置、画像処理方法ならびにプログラム

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US (1) US11375081B2 (enExample)
JP (1) JP7207977B2 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7313879B2 (ja) * 2019-04-08 2023-07-25 キヤノン株式会社 画像処理装置、画像処理方法ならびにプログラム
JP2023006690A (ja) * 2021-06-30 2023-01-18 キヤノン株式会社 画像処理装置とその制御方法、及びプログラム
JP2023103126A (ja) * 2022-01-13 2023-07-26 キヤノン株式会社 画像処理装置、画像処理方法並びにプログラム
JP2024100034A (ja) * 2023-01-13 2024-07-26 キヤノン株式会社 画像処理装置、画像処理方法並びにプログラム

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005135321A (ja) 2003-10-31 2005-05-26 Kyocera Mita Corp 画像形成装置
JP2008109554A (ja) 2006-10-27 2008-05-08 Seiko Epson Corp 画像形成システム、画像形成方法、画像形成プログラム及び記録媒体
JP2010016661A (ja) 2008-07-04 2010-01-21 Murata Mach Ltd 画像処理装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10108010A (ja) * 1996-09-27 1998-04-24 Canon Inc 画像形成装置、画像処理装置および画像処理方法
JP3482083B2 (ja) * 1996-10-24 2003-12-22 日本電信電話株式会社 カラー画像の明るさ変換装置
JPH10285412A (ja) * 1997-04-09 1998-10-23 Canon Inc 画像処理装置およびその方法
US6989839B2 (en) * 2003-06-19 2006-01-24 Xerox Corporation Method for converting color to monochrome to maintain differentiability
US20070058188A1 (en) * 2005-09-14 2007-03-15 Kabushiki Kaisha Toshiba Image forming apparatus, image forming method, and image forming program
KR101184899B1 (ko) * 2006-12-07 2012-09-20 삼성전자주식회사 이미지처리장치 및 이미지처리방법
JP2017038242A (ja) 2015-08-11 2017-02-16 キヤノン株式会社 印刷装置
JP2017139678A (ja) * 2016-02-05 2017-08-10 Ｎｅｃプラットフォームズ株式会社 画像データ変換装置、画像データ変換方法、画像データ変換用プログラム、ｐｏｓ端末装置、及びサーバ
JP7297438B2 (ja) * 2018-12-19 2023-06-26 キヤノン株式会社 情報処理装置、および情報処理装置の制御方法ならびにプログラム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005135321A (ja) 2003-10-31 2005-05-26 Kyocera Mita Corp 画像形成装置
JP2008109554A (ja) 2006-10-27 2008-05-08 Seiko Epson Corp 画像形成システム、画像形成方法、画像形成プログラム及び記録媒体
JP2010016661A (ja) 2008-07-04 2010-01-21 Murata Mach Ltd 画像処理装置

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US20200177764A1 (en) 2020-06-04
JP2020088812A (ja) 2020-06-04
US11375081B2 (en) 2022-06-28

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