CA2078200A1 - Methode et dispositif de correction de gradation - Google Patents

Methode et dispositif de correction de gradation

Info

Publication number
CA2078200A1
CA2078200A1 CA2078200A CA2078200A CA2078200A1 CA 2078200 A1 CA2078200 A1 CA 2078200A1 CA 2078200 A CA2078200 A CA 2078200A CA 2078200 A CA2078200 A CA 2078200A CA 2078200 A1 CA2078200 A1 CA 2078200A1
Authority
CA
Canada
Prior art keywords
luminance signal
gradation
signals
gamma
corrected
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.)
Granted
Application number
CA2078200A
Other languages
English (en)
Other versions
CA2078200C (fr
Inventor
Shigeo Sakaue
Susumu Maruno
Haruo Yamashita
Yasuki Matsumoto
Hideshi Ishihara
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.)
Panasonic Holdings Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2078200A1 publication Critical patent/CA2078200A1/fr
Application granted granted Critical
Publication of CA2078200C publication Critical patent/CA2078200C/fr
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
    • H04N1/00795—Reading arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
    • H04N9/69—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits for modifying the colour signals by gamma correction
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • H04N23/82—Camera processing pipelines; Components thereof for controlling camera response irrespective of the scene brightness, e.g. gamma correction
    • H04N23/83—Camera processing pipelines; Components thereof for controlling camera response irrespective of the scene brightness, e.g. gamma correction specially adapted for colour signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Color, Gradation (AREA)
  • Image Processing (AREA)
  • Color Image Communication Systems (AREA)
CA002078200A 1991-09-17 1992-09-14 Methode et dispositif de correction de gradation Expired - Fee Related CA2078200C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3-236068 1991-09-17
JP3236068A JP2699711B2 (ja) 1991-09-17 1991-09-17 階調補正方法および装置

Publications (2)

Publication Number Publication Date
CA2078200A1 true CA2078200A1 (fr) 1993-03-18
CA2078200C CA2078200C (fr) 1997-10-28

Family

ID=16995247

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002078200A Expired - Fee Related CA2078200C (fr) 1991-09-17 1992-09-14 Methode et dispositif de correction de gradation

Country Status (6)

Country Link
US (1) US5296920A (fr)
EP (1) EP0533100B1 (fr)
JP (1) JP2699711B2 (fr)
KR (1) KR960008059B1 (fr)
CA (1) CA2078200C (fr)
DE (1) DE69223474T2 (fr)

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CN1836452A (zh) * 2003-08-18 2006-09-20 皇家飞利浦电子股份有限公司 为饱和度控制修改亮度加权
EP1665814A1 (fr) * 2003-09-12 2006-06-07 Koninklijke Philips Electronics N.V. Procede et appareil de reglage de luminance, programme informatique et systeme de calcul
JP2005221701A (ja) * 2004-02-05 2005-08-18 Tohoku Pioneer Corp 発光表示パネルの駆動装置および駆動方法
JP2005294907A (ja) * 2004-03-31 2005-10-20 Seiko Epson Corp テレビ受像機及び画像出力方法
JP4289225B2 (ja) 2004-06-18 2009-07-01 株式会社ニコン 画像処理装置および画像処理方法
JP4774757B2 (ja) 2004-09-17 2011-09-14 株式会社ニコン 画像処理装置、画像処理プログラム、電子カメラ、および画像処理方法
US7599578B2 (en) * 2004-09-17 2009-10-06 Nikon Corporation Apparatus, program, and method for image tone transformation, and electronic camera
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JP4030560B2 (ja) * 2005-12-14 2008-01-09 三菱電機株式会社 画像処理装置及び画像表示装置
JP4645466B2 (ja) * 2006-01-31 2011-03-09 パナソニック株式会社 撮像装置
JP4916341B2 (ja) * 2007-02-28 2012-04-11 オリンパス株式会社 画像処理装置及び画像処理プログラム
JP4785799B2 (ja) * 2007-07-17 2011-10-05 富士フイルム株式会社 画像処理装置、画像処理方法及び撮影装置
JP4922091B2 (ja) 2007-07-23 2012-04-25 ルネサスエレクトロニクス株式会社 映像信号処理装置、映像信号処理方法及び表示装置
GB2456745A (en) * 2007-10-08 2009-07-29 Keymed Luminance gamma correction with chroma gain adjustment
CN101453661B (zh) * 2007-11-29 2010-09-22 胜华科技股份有限公司 影像处理方法
TWI388200B (zh) * 2009-03-25 2013-03-01 Micro Star Int Co Ltd A method for generating a high dynamic range image and a digital image pickup device thereof
KR101073568B1 (ko) * 2009-08-27 2011-10-14 삼성모바일디스플레이주식회사 표시 장치 및 그 구동 방법
EP2521120A4 (fr) * 2009-12-28 2013-07-24 Sharp Kk Dispositif d'affichage
US8861878B2 (en) 2010-03-23 2014-10-14 Fujifilm Corporation Image processing method and device for performing grayscale conversion, and image processing program
JP5365881B2 (ja) * 2010-06-28 2013-12-11 株式会社Ｊｖｃケンウッド 画像処理装置、画像処理方法
JP2012049627A (ja) * 2010-08-24 2012-03-08 Sony Corp 信号処理装置、信号処理方法およびプログラム
JP6014001B2 (ja) * 2013-09-26 2016-10-25 京セラドキュメントソリューションズ株式会社 画像形成装置及び画像形成プログラム
CN105644161B (zh) * 2014-11-13 2017-11-17 株式会社理光 医疗图像打印装置及其医疗图像打印系统
JP6580801B2 (ja) * 2016-12-14 2019-09-25 富士フイルム株式会社 画像処理装置、撮像装置、画像処理方法及び画像処理プログラム
JP7656833B2 (ja) * 2022-04-26 2025-04-04 Ｊｉｇ－Ｓａｗ株式会社 情報処理装置、情報処理方法、およびプログラム
CN116165356B (zh) * 2023-01-04 2025-09-05 海信冰箱有限公司 一种鸡蛋新鲜度检测装置、方法及包括其的冰箱

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Also Published As

Publication number Publication date
KR930007216A (ko) 1993-04-22
EP0533100A2 (fr) 1993-03-24
JP2699711B2 (ja) 1998-01-19
EP0533100A3 (fr) 1993-05-19
US5296920A (en) 1994-03-22
CA2078200C (fr) 1997-10-28
JPH0576036A (ja) 1993-03-26
KR960008059B1 (ko) 1996-06-19
EP0533100B1 (fr) 1997-12-10
DE69223474D1 (de) 1998-01-22
DE69223474T2 (de) 1998-04-02

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