DE69716803T2 - Bildqualitätverbesserungsverfahren durch Histogramm-Entzerrung mit Mittelwertübereinstimmung und Schaltung dafür - Google Patents

Bildqualitätverbesserungsverfahren durch Histogramm-Entzerrung mit Mittelwertübereinstimmung und Schaltung dafür

Info

Publication number: DE69716803T2
Authority: DE; Germany
Prior art keywords: image quality; quality improvement; improvement method; histogram equalization; circuit therefor
Prior art date: 1996-04-10
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 - Lifetime

Application number

DE69716803T

Other languages

English (en)

Other versions

DE69716803D1 (de

Inventor

Young-Taek Kim

Yong-Hun Cho

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.)

Samsung Electronics Co Ltd

Original Assignee

Samsung Electronics 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.)

1996-04-10

Filing date

1997-03-06

Publication date

2003-03-27

1996-04-10 Priority claimed from KR1019960010783A external-priority patent/KR100213039B1/ko

1996-05-21 Priority claimed from KR1019960017211A external-priority patent/KR0176602B1/ko

1997-03-06 Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd

2002-12-12 Publication of DE69716803D1 publication Critical patent/DE69716803D1/de

2003-03-27 Application granted granted Critical

2003-03-27 Publication of DE69716803T2 publication Critical patent/DE69716803T2/de

2017-03-07 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Classifications

- G06T5/92—
- 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 by the use of histogram techniques

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Theoretical Computer Science (AREA)
Image Processing (AREA)
Picture Signal Circuits (AREA)
Facsimile Image Signal Circuits (AREA)
Television Receiver Circuits (AREA)

DE69716803T 1996-04-10 1997-03-06 Bildqualitätverbesserungsverfahren durch Histogramm-Entzerrung mit Mittelwertübereinstimmung und Schaltung dafür Expired - Lifetime DE69716803T2 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
KR1019960010783A KR100213039B1 (ko)	1996-04-10	1996-04-10	평균-매칭 히스토그램 등화를 이용한 화질 개선 방법 및 그 회로
KR1019960017211A KR0176602B1 (ko)	1996-05-21	1996-05-21	밝기보상기능을 가진 평균-매칭 히스토그램 등화를 이용한 화질 개선 방법 및 그 회로

Publications (2)

Publication Number	Publication Date
DE69716803D1 DE69716803D1 (de)	2002-12-12
DE69716803T2 true DE69716803T2 (de)	2003-03-27

Family

ID=26631745

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69716803T Expired - Lifetime DE69716803T2 (de)	1996-04-10	1997-03-06	Bildqualitätverbesserungsverfahren durch Histogramm-Entzerrung mit Mittelwertübereinstimmung und Schaltung dafür

Country Status (6)

Country	Link
US (1)	US5862254A (de)
EP (1)	EP0801360B1 (de)
JP (1)	JP3130268B2 (de)
CN (1)	CN1081370C (de)
DE (1)	DE69716803T2 (de)
ES (1)	ES2185874T3 (de)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR100189922B1 (ko) *	1996-06-20	1999-06-01	윤종용	히스토그램 등화를 이용한 동영상의 콘트라스트개선회로 및 그 방법
KR980003998A (ko) *	1996-06-27	1998-03-30	김광호	제한된 분포의 히스토그램 변환을 이용한 화질 개선방법
JP3280888B2 (ja) *	1996-08-19	2002-05-13	三星電子株式会社	量子化された平均−マッチングヒストグラム等化を用いた画質改善方法及びその回路
KR100200628B1 (ko) *	1996-09-30	1999-06-15	윤종용	화질 개선 회로 및 그 방법
US6018588A (en) *	1996-10-09	2000-01-25	Samsung Electronics Co., Ltd.	Image enhancement circuit and method using mean matching/quantized mean matching histogram equalization and color compensation
ES2268753T3 (es) *	1998-11-17	2007-03-16	Koninklijke Kpn N.V.	Metodo y disposicion para alinear secuencias de video de entrada y de salida para la medicion de la calidad de video.
KR100298412B1 (ko) *	1999-05-08	2001-09-26	구자홍	동영상 송수신 시스템에서의 영상신호 밝기 제어장치 및 방법
DE50001023D1 (de)	1999-06-15	2003-02-06	Infineon Technologies Ag	Verfahren und schaltungsanordnung zur kontrastverbesserung eines bildes
KR100456987B1 (ko) *	2001-04-10	2004-11-10	가부시키가이샤 히타치세이사쿠쇼	표시 데이터를 표시하기 위한 표시 장치 및 표시 구동 장치
US20020172419A1 (en) *	2001-05-15	2002-11-21	Qian Lin	Image enhancement using face detection
DE60130671D1 (de) *	2001-12-24	2007-11-08	St Microelectronics Srl	Verfahren zur Kontrastverbesserung in digitalen Farbbildern
KR20040008067A (ko) *	2002-07-15	2004-01-28	삼성전자주식회사	화면간의 상관도를 이용한 화질 개선 회로 및 방법
US7042522B2 (en) *	2002-08-01	2006-05-09	Samsung Electronics Co., Ltd.	Adaptive contrast enhancement method using time-varying nonlinear transforms on a video signal
WO2004023787A2 (en) *	2002-09-06	2004-03-18	Rytec Corporation	Signal intensity range transformation apparatus and method
KR20040040699A (ko) *	2002-11-07	2004-05-13	삼성전자주식회사	콘트라스트 보정 장치 및 방법
US20040109091A1 (en) *	2002-12-03	2004-06-10	Samsung Electronics Co., Ltd.	Apparatus and method for adaptive brightness control
US8135073B2 (en) *	2002-12-19	2012-03-13	Trident Microsystems (Far East) Ltd	Enhancing video images depending on prior image enhancements
JP2006511160A (ja) *	2002-12-20	2006-03-30	コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ	先行する画像強化に依存したビデオ画像強化
KR100528537B1 (ko) *	2003-04-04	2005-11-15	엘지전자 주식회사	Ｌｃｄ 화면 밝기 자동 조절 장치 및 그 방법
KR100513273B1 (ko) *	2003-07-04	2005-09-09	이디텍 주식회사	동영상 신호의 실시간 밝기 제어 장치 및 방법
US7221408B2 (en) *	2003-08-15	2007-05-22	Samsung Electronics Co., Ltd.	Adaptive contrast enhancement method for video signals based on time-varying nonlinear transforms
US7110046B2 (en) *	2003-11-04	2006-09-19	Cyberlink Corp.	Method for dynamically adjusting video brightness
KR100965597B1 (ko) *	2003-12-29	2010-06-23	엘지디스플레이 주식회사	액정표시장치의 구동방법 및 구동장치
US7760961B2 (en) *	2004-10-15	2010-07-20	Caba Moldvai	Adaptive contrast enhancement
US7715649B2 (en) *	2005-02-14	2010-05-11	Fujifilm Corporation	Generation and adjustment of a luminance correction curve to prevent saturation of the image during contrast enhancement
KR100703527B1 (ko) *	2005-07-12	2007-04-03	삼성전자주식회사	핫코드 인식률 향상을 위한 이미지 전처리 방법 및 그 장치
CN100342710C (zh) *	2005-08-22	2007-10-10	上海广电（集团）有限公司中央研究院	增强图像的结构方法
US7288962B2 (en) *	2006-02-08	2007-10-30	Kyocera Wireless Corp.	Level shifting multiplexing circuit for connecting a two conductor full duplex bus to a bidirectional single conductor bus
JP5196731B2 (ja) *	2006-04-20	2013-05-15	キヤノン株式会社	画像処理装置及び画像処理方法
TWI348135B (en)	2006-06-05	2011-09-01	Chunghwa Picture Tubes Ltd	Image contrast correct system and method thereof
KR100849845B1 (ko)	2006-09-05	2008-08-01	삼성전자주식회사	영상 보정 방법 및 장치
US8806321B2 (en) *	2007-06-26	2014-08-12	Oracle International Corporation	Interactive controls and information visualization using histogram equalization
EP2346568A2 (de) *	2008-09-16	2011-07-27	Second Sight Medical Products	Digitale bildfilter und verwandte verfahren zur bildkontrastverstärkung
US8285040B1 (en)	2008-12-09	2012-10-09	Csr Technology Inc.	Method and apparatus for adaptive contrast enhancement of image data
US8599318B2 (en) *	2010-05-21	2013-12-03	Vixs Systems, Inc.	Contrast control device and method therefor
US8698961B2 (en) *	2010-05-21	2014-04-15	Vixs Systems, Inc.	Enhanced histogram equalization
CN103414834B (zh) *	2013-07-26	2016-01-20	深圳市顶星数码网络技术有限公司	一种屏幕节电方法、装置及移动终端
CN109785252B (zh) *	2018-12-25	2023-03-24	山西大学	基于多尺度残差密集网络夜间图像增强方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5341142A (en) *	1987-07-24	1994-08-23	Northrop Grumman Corporation	Target acquisition and tracking system
US5289282A (en) *	1991-05-28	1994-02-22	Matsushita Electric Industrial Co., Ltd.	Video signal gradation corrector
US5675624A (en) *	1995-12-14	1997-10-07	General Electric Company	Adaptive x-ray brightness and display control for a medical imaging system

1997
- 1997-03-06 ES ES97301507T patent/ES2185874T3/es not_active Expired - Lifetime
- 1997-03-06 EP EP97301507A patent/EP0801360B1/de not_active Expired - Lifetime
- 1997-03-06 DE DE69716803T patent/DE69716803T2/de not_active Expired - Lifetime
- 1997-03-14 CN CN97103045A patent/CN1081370C/zh not_active Expired - Lifetime
- 1997-03-17 US US08/819,029 patent/US5862254A/en not_active Expired - Lifetime
- 1997-04-03 JP JP09085291A patent/JP3130268B2/ja not_active Expired - Fee Related

Also Published As

Publication number	Publication date
DE69716803D1 (de)	2002-12-12
US5862254A (en)	1999-01-19
CN1162799A (zh)	1997-10-22
ES2185874T3 (es)	2003-05-01
JPH1032769A (ja)	1998-02-03
CN1081370C (zh)	2002-03-20
EP0801360A2 (de)	1997-10-15
EP0801360B1 (de)	2002-11-06
JP3130268B2 (ja)	2001-01-31
EP0801360A3 (de)	1998-01-21

Legal Events

Date	Code	Title	Description
2003-12-04	8364	No opposition during term of opposition

Publication	Publication Date	Title
DE69716803D1 (de)	2002-12-12	Bildqualitätverbesserungsverfahren durch Histogramm-Entzerrung mit Mittelwertübereinstimmung und Schaltung dafür
DE69717518T2 (de)	2003-04-24	Bildverbesserungsverfahren durch Histogramm-Entzerrung mit Mittelwertübereinstimmung und Schaltung dafür
EP0654943A3 (de)	1995-12-06	Verfahren und Schaltung zur Bildverbesserung.
EP1110380A4 (de)	2002-02-20	Gerät und verfahren zur kantenverbesserung in digitalen bildern
DE69524542D1 (de)	2002-01-24	Farbkorrekturverfahren und -vorrichtung
DE69736377D1 (de)	2006-09-07	Bildverarbeitungsgerät und -verfahren
DE69732279D1 (de)	2005-02-24	Bildverarbeitungsgerät und -verfahren
DE69029403T2 (de)	1997-05-28	Verfahren und vorrichtung zur autoadaptiven einblendung von farbvideobildern
DE69737984D1 (de)	2007-09-20	Bildverarbeitungsverfahren und -gerät
DE69637090D1 (de)	2007-06-28	Bildreproduktionsverfahren und -gerät
DE69933436D1 (de)	2006-11-16	Bildverarbeitungsvorrichtung und -verfahren
EP1122951A4 (de)	2002-07-17	Verfahren und gerät zur bearbeitungzeitveränderlicher bilder
DE69835638D1 (de)	2006-10-05	Farbbildverarbeitungsgerät und -verfahren
DE69535393D1 (de)	2007-04-05	Bilderzeugungsverfahren und -gerät
DE69838579D1 (de)	2007-11-29	Bildverarbeitungsvorrichtung und -verfahren
DE69404128T2 (de)	1998-01-29	Abbildungsverfahren und -apparat
DE69941941D1 (de)	2010-03-11	Bildverarbeitungsverfahren und -vorrichtung
DE69430962D1 (de)	2002-08-22	Bilddefokusierungsverfahren und -vorrichtung
DE69522594T2 (de)	2002-07-11	Farbbildverarbeitungsverfahren
DE69530438D1 (de)	2003-05-28	Bildaufzeichnungsgerät und Verfahren dafür, Druckkopf und Steuerschaltungdafür
DE69633319D1 (de)	2004-10-14	Bildreproduktionsverfahren und -gerät
DE69942078D1 (de)	2010-04-15	Bildverarbeitungsvorrichtung und -verfahren
DE69711769T2 (de)	2002-09-12	Farbbilderzeugungsverfahren und -vorrichtung
DE69532025D1 (de)	2005-05-25	Farbbildverarbeitungsverfahren und -gerät
DE69733456D1 (de)	2005-07-14	Bildverarbeitungsvorrichtung und -verfahren