CN1157945C - 调节视频图像对比度的设备 - Google Patents

调节视频图像对比度的设备 Download PDF

Info

Publication number
CN1157945C
CN1157945C CNB971054983A CN97105498A CN1157945C CN 1157945 C CN1157945 C CN 1157945C CN B971054983 A CNB971054983 A CN B971054983A CN 97105498 A CN97105498 A CN 97105498A CN 1157945 C CN1157945 C CN 1157945C
Authority
CN
China
Prior art keywords
input
output
red
blue
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
CNB971054983A
Other languages
English (en)
Chinese (zh)
Other versions
CN1172396A (zh
Inventor
��˹��ŵ��
库诺·伦兹
¡
西格里德·豪泽
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.)
Vantiva SA
Original Assignee
Thomson Consumer Electronics SA
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 Thomson Consumer Electronics SA filed Critical Thomson Consumer Electronics SA
Publication of CN1172396A publication Critical patent/CN1172396A/zh
Application granted granted Critical
Publication of CN1157945C publication Critical patent/CN1157945C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57—Control of contrast or brightness
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)
  • Processing Of Color Television Signals (AREA)
CNB971054983A 1996-06-07 1997-06-06 调节视频图像对比度的设备 Expired - Fee Related CN1157945C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9607045 1996-06-07
FR9607045A FR2749731B1 (fr) 1996-06-07 1996-06-07 Dispositif de regulation de contraste d'image video

Publications (2)

Publication Number Publication Date
CN1172396A CN1172396A (zh) 1998-02-04
CN1157945C true CN1157945C (zh) 2004-07-14

Family

ID=9492803

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB971054983A Expired - Fee Related CN1157945C (zh) 1996-06-07 1997-06-06 调节视频图像对比度的设备

Country Status (6)

Country Link
US (1) US5940144A (enExample)
EP (1) EP0812107B1 (enExample)
JP (1) JP3892529B2 (enExample)
CN (1) CN1157945C (enExample)
DE (1) DE69709576T2 (enExample)
FR (1) FR2749731B1 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3494555B2 (ja) 1997-07-14 2004-02-09 株式会社日立製作所 表示装置及び表示方法
KR100333333B1 (ko) * 1998-12-22 2002-06-20 윤종용 영상신호 처리 시스템의 색신호 처리장치
JP2002077641A (ja) * 2000-08-30 2002-03-15 Matsushita Electric Ind Co Ltd ファクシミリ装置
EP1380177A1 (en) * 2001-04-11 2004-01-14 Koninklijke Philips Electronics N.V. Picture signal contrast control
JP2005057621A (ja) * 2003-08-07 2005-03-03 Sanyo Electric Co Ltd 映像信号処理回路
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

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0657066B2 (ja) * 1984-12-20 1994-07-27 キヤノン株式会社 カラ−調整装置
JP2515869B2 (ja) * 1988-11-28 1996-07-10 株式会社日立製作所 ビデオ信号処理回路
FR2640839B1 (fr) * 1988-12-20 1991-03-15 Portenseigne Radiotechnique Appareil de reproduction d'image video muni d'un reglage de contraste, et procede de reglage du contraste d'un tel appareil de reproduction
US4980756A (en) * 1989-08-25 1990-12-25 Rca Licensing Corporation Control signal generator for a television system
EP0589513B1 (en) * 1992-09-22 1998-12-02 Koninklijke Philips Electronics N.V. Picture signal processor
JP2876934B2 (ja) * 1993-05-31 1999-03-31 日本電気株式会社 画像のコントラスト強調方法及び装置
JP3134660B2 (ja) * 1994-04-14 2001-02-13 松下電器産業株式会社 色変換方法および色変換装置

Also Published As

Publication number Publication date
JP3892529B2 (ja) 2007-03-14
JPH1065991A (ja) 1998-03-06
CN1172396A (zh) 1998-02-04
EP0812107A1 (en) 1997-12-10
US5940144A (en) 1999-08-17
DE69709576T2 (de) 2002-08-22
FR2749731B1 (fr) 2000-08-04
DE69709576D1 (de) 2002-02-21
EP0812107B1 (en) 2002-01-16
FR2749731A1 (fr) 1997-12-12

Similar Documents

Publication Publication Date Title
DE69515193T2 (de) Verfahren und Gerät zur Farbkonversion
DE69520303T2 (de) Bildabhängige Farbsättigungskorrektur für Bilddarstellungen natürlicher Szenen
CN104079908B (zh) 红外与可见光图像信号处理方法及其实现装置
US7428333B2 (en) Visibility improvement in color video stream
US6700559B1 (en) Liquid crystal display unit having fine color control
CN102223547B (zh) 图像色彩增强装置和方法
CA2253163C (en) An image processing method and system for generating a palette
CN101621702B (zh) 色度和饱和度的自动调整方法和装置
CN1157945C (zh) 调节视频图像对比度的设备
DE102004001890A1 (de) Digitaler automatischer Weißausgleich
KR20090013934A (ko) 이차원 정지 화상에 대해 몰입감을 생성하는 방법 및시스템 그리고 상기 몰입감 생성을 위한 팩터 조절 방법,이미지 콘텐트 분석 방법 및 스케일링 파라미터 예측 방법
CN1307318A (zh) 图像处理方法、装置和记录介质
EP1333660A2 (en) Adjusting the color, brightness, and tone scale of rendered digital images
DE19733629A1 (de) Flüssigkristall-Anzeigevorrichtung vom Projektionstyp
JPH0477179A (ja) 映像信号の階調補正装置
CN105184284B (zh) 一种背景照明颜色可变的光学指纹采集设备及设计方法
US7649653B2 (en) Processing apparatus and method for enhancing image color
CN1085926C (zh) 视频信号灰度修正装置
US7190831B2 (en) Method for squeezing an input hue toward a region of preferred hue
EP0524243A4 (enExample)
JP2000316172A (ja) 映像信号処理回路
DE102006050864A1 (de) Verfahren und Vorrichtung zur Korrektur fehlerhafter Pixel für eine bildgebende Festkörpervorrichtung
WO2006110427A2 (en) Method and apparatus for an image presentation device with illumination control for black image processing
DE602004000490T2 (de) Verfahren zur Farbkorrektur von digitalen Bilddaten
WO2006110127A2 (en) Visibility improvement in color video stream

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20040714

Termination date: 20100606