DE602005004682D1 - Bildverarbeitungsvorrichtung und -verfahren - Google Patents

Bildverarbeitungsvorrichtung und -verfahren

Info

Publication number
DE602005004682D1
DE602005004682D1 DE602005004682T DE602005004682T DE602005004682D1 DE 602005004682 D1 DE602005004682 D1 DE 602005004682D1 DE 602005004682 T DE602005004682 T DE 602005004682T DE 602005004682 T DE602005004682 T DE 602005004682T DE 602005004682 D1 DE602005004682 D1 DE 602005004682D1
Authority
DE
Germany
Prior art keywords
processing apparatus
image processing
image
processing
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.)
Active
Application number
DE602005004682T
Other languages
English (en)
Other versions
DE602005004682T2 (de
Inventor
Tetsu Fukue
Satoshi Shigenaga
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 Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE602005004682D1 publication Critical patent/DE602005004682D1/de
Application granted granted Critical
Publication of DE602005004682T2 publication Critical patent/DE602005004682T2/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/20—Circuitry for controlling amplitude response
    • H04N5/202—Gamma control
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Image Processing (AREA)
DE602005004682T 2004-03-10 2005-03-09 Bildverarbeitungsvorrichtung und -verfahren Active DE602005004682T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004066848A JP2005260405A (ja) 2004-03-10 2004-03-10 画像処理装置および画像処理方法
JP2004066848 2004-03-10

Publications (2)

Publication Number Publication Date
DE602005004682D1 true DE602005004682D1 (de) 2008-03-27
DE602005004682T2 DE602005004682T2 (de) 2008-06-12

Family

ID=34824569

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005004682T Active DE602005004682T2 (de) 2004-03-10 2005-03-09 Bildverarbeitungsvorrichtung und -verfahren

Country Status (4)

Country Link
US (1) US7391480B2 (de)
EP (1) EP1575264B1 (de)
JP (1) JP2005260405A (de)
DE (1) DE602005004682T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007139842A (ja) * 2005-11-15 2007-06-07 Nec Electronics Corp 表示装置、データドライバｉｃ、及びタイミングコントローラ
WO2008010023A1 (en) * 2006-07-12 2008-01-24 Freescale Semiconductor, Inc. A method for gamma correction and a device having gamma correction capabilities
TWI351677B (en) * 2006-11-22 2011-11-01 Quanta Comp Inc System and method for gamma conversion
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
CN101377919B (zh) * 2007-08-28 2010-12-08 晨星半导体股份有限公司 伽马校正装置
WO2010045125A1 (en) * 2008-10-14 2010-04-22 Dolby Laboratories Licensing Corporation Efficient computation of driving signals for devices with non-linear response curves
JP2014219724A (ja) * 2013-05-01 2014-11-20 キヤノン株式会社 画像処理装置、画像処理装置の制御方法、及び、プログラム
US10559499B2 (en) * 2016-07-29 2020-02-11 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device, display system, and electronic device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2521183Y2 (ja) * 1987-09-29 1996-12-25 ソニー株式会社 ディジタル信号処理回路
JPH03139972A (ja) 1989-10-25 1991-06-14 Canon Inc 画像読取装置
JPH05191675A (ja) * 1992-01-14 1993-07-30 Canon Inc ガンマ補正回路及びそれを用いた撮像装置
US5255093A (en) * 1992-06-19 1993-10-19 Panasonic Technologies, Inc. Apparatus and a method for limiting gain in a digital gamma corrector
US5589954A (en) * 1993-05-28 1996-12-31 Ricoh Company, Ltd. γ-correction curve selecting apparatus and a γ-correction curve creating apparatus
US6160532A (en) * 1997-03-12 2000-12-12 Seiko Epson Corporation Digital gamma correction circuit, gamma correction method, and a liquid crystal display apparatus and electronic device using said digital gamma correction circuit and gamma correction method
US6462837B1 (en) 1998-03-05 2002-10-08 Ricoh Company, Ltd. Gray-scale conversion based on SIMD processor
US6292165B1 (en) * 1999-08-13 2001-09-18 Industrial Technology Research Institute Adaptive piece-wise approximation method for gamma correction
US6965389B1 (en) * 1999-09-08 2005-11-15 Victor Company Of Japan, Ltd. Image displaying with multi-gradation processing
JP3753954B2 (ja) 2001-06-11 2006-03-08 株式会社メガチップス 画像処理装置および画像処理システム
US7016534B2 (en) * 2001-08-07 2006-03-21 Canon Kabushiki Kaisha Method, and apparatus for discriminating kind of image medium stored with program

Also Published As

Publication number Publication date
EP1575264B1 (de) 2008-02-13
EP1575264A1 (de) 2005-09-14
JP2005260405A (ja) 2005-09-22
US20050200761A1 (en) 2005-09-15
US7391480B2 (en) 2008-06-24
DE602005004682T2 (de) 2008-06-12

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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: PANASONIC CORP., KADOMA, OSAKA, JP