DE69227159D1 - Vorrichtung zur Helligkeitskorrektur - Google Patents

Vorrichtung zur Helligkeitskorrektur

Info

Publication number: DE69227159D1
Authority: DE; Germany
Prior art keywords: correction device; brightness correction; brightness; correction
Prior art date: 1991-06-28
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

DE69227159T

Other languages

English (en)

Other versions

DE69227159T2 (de

Inventor

Yosuke Izawa

Naoji Okumura

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

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.)

1991-06-28

Filing date

1992-06-25

Publication date

1998-11-05

1992-06-25 Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd

1998-11-05 Application granted granted Critical

1998-11-05 Publication of DE69227159D1 publication Critical patent/DE69227159D1/de

1999-03-18 Publication of DE69227159T2 publication Critical patent/DE69227159T2/de

2012-06-26 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Classifications

- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/90—Dynamic range modification of images or parts thereof
- G06T5/92—Dynamic range modification of images or parts thereof based on global image properties
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/40—Image enhancement or restoration using histogram techniques
- 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

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Theoretical Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Picture Signal Circuits (AREA)
Television Receiver Circuits (AREA)
Controls And Circuits For Display Device (AREA)

DE69227159T 1991-06-28 1992-06-25 Vorrichtung zur Helligkeitskorrektur Expired - Fee Related DE69227159T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP3158193A JP3019479B2 (ja)	1991-06-28	1991-06-28	階調補正装置

Publications (2)

Publication Number	Publication Date
DE69227159D1 true DE69227159D1 (de)	1998-11-05
DE69227159T2 DE69227159T2 (de)	1999-03-18

Family

ID=15666307

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69227159T Expired - Fee Related DE69227159T2 (de)	1991-06-28	1992-06-25	Vorrichtung zur Helligkeitskorrektur

Country Status (5)

Country	Link
US (1)	US5315389A (de)
EP (1)	EP0525976B1 (de)
JP (1)	JP3019479B2 (de)
CA (1)	CA2072234C (de)
DE (1)	DE69227159T2 (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP3016652B2 (ja) *	1992-02-07	2000-03-06	松下電器産業株式会社	ゲインコントロール回路
DE4309878C2 (de) *	1992-04-06	1994-07-21	Hell Ag Linotype	Verfahren und Einrichtung zur Analyse und Korrektur der Bildgradation in Bildvorlagen
JPH0822274A (ja) *	1994-07-07	1996-01-23	Hitachi Ltd	画像ファイル及びその作成方法と画像表示装置
US5870154A (en) *	1996-03-08	1999-02-09	Honeywell Inc.	Signal enhancement system
US5793886A (en) *	1996-12-19	1998-08-11	Eastman Kodak Company	Method of adjusting image pixel values within an image sequence by interpolation of target cumulative histograms for images to be adjusted
US6038341A (en) *	1997-03-06	2000-03-14	Matsushita Electric Industrial Co., Ltd.	Histogram operating unit for video signals
US6750906B1 (en) *	1998-05-08	2004-06-15	Cirrus Logic, Inc.	Histogram-based automatic gain control method and system for video applications
US6791711B1 (en)	1998-06-24	2004-09-14	Canon Kabushiki Kaisha	Image processing method, image processing apparatus, and recording medium
MY123018A (en)	1998-07-24	2006-05-31	Panasonic Corp	Video signal character converting device and method of the same
JP3714657B2 (ja) *	1999-05-12	2005-11-09	パイオニア株式会社	階調補正装置
EP1075140A1 (de) *	1999-08-02	2001-02-07	Koninklijke Philips Electronics N.V.	Verbesserung eines Videosignals
EP1126410A1 (de) *	2000-02-14	2001-08-22	Koninklijke Philips Electronics N.V.	Bildsignalverbesserung
JP4682424B2 (ja) *	2000-03-10	2011-05-11	パナソニック株式会社	ディジタル画像補正装置、ディジタル画像補正方法、ｘ線画像による診断装置
EP1134698A1 (de) *	2000-03-13	2001-09-19	Koninklijke Philips Electronics N.V.	Videogerät mit Mitteln zur Histogrammveränderung
EP1164784A1 (de)	2000-06-13	2001-12-19	Koninklijke Philips Electronics N.V.	Verhinderung des Wölbungsphänomens
US7106350B2 (en) *	2000-07-07	2006-09-12	Kabushiki Kaisha Toshiba	Display method for liquid crystal display device
JP2004510363A (ja)	2000-08-31	2004-04-02	ライテック　コーポレイション	センサおよびイメージングシステム
AU2003270386A1 (en)	2002-09-06	2004-03-29	Rytec Corporation	Signal intensity range transformation apparatus and method
KR20040040699A (ko)	2002-11-07	2004-05-13	삼성전자주식회사	콘트라스트 보정 장치 및 방법
US7605872B2 (en) *	2005-06-20	2009-10-20	Mediatek Inc.	Video contrast adjusting method and system
JP2008209885A (ja) *	2007-02-23	2008-09-11	Samsung Sdi Co Ltd	低電力駆動制御部及びこれを備える有機電界発光表示装置
US8731322B2 (en) *	2007-05-03	2014-05-20	Mtekvision Co., Ltd.	Image brightness controlling apparatus and method thereof
USD675830S1 (en)	2009-12-18	2013-02-12	Colgate-Palmolive Company	Toothbrush
KR101733061B1 (ko) *	2016-02-02	2017-05-08	대성쎌틱에너시스 주식회사	Tdr 댐퍼

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS59125176A (ja) *	1982-12-30	1984-07-19	インタ−ナシヨナル　ビジネス　マシ−ンズ　コ−ポレ−シヨン	ビデオイメ−ジのシエ−ジング効果の補正装置
US4731865A (en) *	1986-03-27	1988-03-15	General Electric Company	Digital image correction
JPH0724425B2 (ja) *	1986-09-02	1995-03-15	富士写真フイルム株式会社	画像処理方法及び装置
JPS63225879A (ja) *	1987-03-14	1988-09-20	Fujitsu Ltd	階調補正処理方式
JPH0787587B2 (ja) *	1990-02-16	1995-09-20	松下電器産業株式会社	階調補正装置
US5133022A (en) *	1991-02-06	1992-07-21	Recognition Equipment Incorporated	Normalizing correlator for video processing
JPH04271669A (ja) *	1991-02-27	1992-09-28	Matsushita Electric Ind Co Ltd	階調補正装置
JPH0799862B2 (ja) *	1991-03-22	1995-10-25	松下電器産業株式会社	階調補正装置

1991
- 1991-06-28 JP JP3158193A patent/JP3019479B2/ja not_active Expired - Fee Related
1992
- 1992-06-24 CA CA002072234A patent/CA2072234C/en not_active Expired - Fee Related
- 1992-06-25 EP EP92305838A patent/EP0525976B1/de not_active Expired - Lifetime
- 1992-06-25 US US07/904,214 patent/US5315389A/en not_active Expired - Lifetime
- 1992-06-25 DE DE69227159T patent/DE69227159T2/de not_active Expired - Fee Related

Also Published As

Publication number	Publication date
EP0525976B1 (de)	1998-09-30
EP0525976A3 (en)	1993-10-13
CA2072234A1 (en)	1992-12-29
DE69227159T2 (de)	1999-03-18
JP3019479B2 (ja)	2000-03-13
JPH0695632A (ja)	1994-04-08
EP0525976A2 (de)	1993-02-03
CA2072234C (en)	1998-04-21
US5315389A (en)	1994-05-24

Publication	Publication Date	Title
DE69227159D1 (de)	1998-11-05	Vorrichtung zur Helligkeitskorrektur
DE69231565D1 (de)	2000-12-21	Vorrichtung zur Zeitbasiskorrektur
DE69212662D1 (de)	1996-09-19	Vorrichtung zur Hinterbeleuchtung
DE69220870D1 (de)	1997-08-21	Vorrichtung zur rückseitigen Beleuchtung
DE69226391D1 (de)	1998-09-03	Vorrichtung zur rückseitigen Beleuchtung
DE69418502D1 (de)	1999-06-24	Vorrichtung zur Hintergrund-Beleuchtung
DE69225958D1 (de)	1998-07-23	Vorrichtung zur dynamischen Verzerrungskorrektur
DE69405587D1 (de)	1997-10-16	Tracheostoma vorrichtung
DE69423430D1 (de)	2000-04-20	Vorrichtung zur Bildzitterkorrektur
DE69230826D1 (de)	2000-04-27	Lösbar-implantierbare vorrichtung
DE69130901D1 (de)	1999-03-25	Vorrichtung zur zerebralen wiederbelebung
DE69406550D1 (de)	1997-12-04	Elektrolumineszierende vorrichtung
DE69629423D1 (de)	2003-09-18	Vorrichtung zur Flimmerreduzierung
DE69221133D1 (de)	1997-08-28	Vorrichtung zur auswechselung von stoffen
DE69218186D1 (de)	1997-04-17	Chirurgische vorrichtung
DE69531407D1 (de)	2003-09-04	Vorrichtung zur radiographischen farbstoffinjektion
DE69220953D1 (de)	1997-08-21	Vorrichtung zur unterscheidung von münzen
DE69019391D1 (de)	1995-06-22	Einrichtung zur Gammakorrektur.
DE69200277D1 (de)	1994-09-01	Vorrichtung zur Herstellung von Schlingen.
DE69121313D1 (de)	1996-09-19	Vorrichtung zur Kontrastkorrektur
DE69025356D1 (de)	1996-03-28	Vorrichtung zur elektronischen Bildzusammensetzung
DE69224108D1 (de)	1998-02-26	Vorrichtung zur Übertragung von Bildern
DE69201292D1 (de)	1995-03-09	Vorrichtung zur Einkristallziehung.
DE69124347D1 (de)	1997-03-06	Vorrichtung zur Bildaufnahme
DE69327928D1 (de)	2000-04-06	Vorrichtung zur Kodierung von unbeweglichen Bildern

Legal Events

Date	Code	Title	Description
1999-10-28	8364	No opposition during term of opposition
2001-08-09	8339	Ceased/non-payment of the annual fee