DE60108577D1 - Videogerät mit mitteln zur histogrammveränderung - Google Patents

Videogerät mit mitteln zur histogrammveränderung

Info

Publication number
DE60108577D1
DE60108577D1 DE60108577T DE60108577T DE60108577D1 DE 60108577 D1 DE60108577 D1 DE 60108577D1 DE 60108577 T DE60108577 T DE 60108577T DE 60108577 T DE60108577 T DE 60108577T DE 60108577 D1 DE60108577 D1 DE 60108577D1
Authority
DE
Germany
Prior art keywords
look
luminance
color
memory
values
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 - Lifetime
Application number
DE60108577T
Other languages
English (en)
Other versions
DE60108577T2 (de
Inventor
H Stessen
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.)
IPG Electronics 503 Ltd
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE60108577D1 publication Critical patent/DE60108577D1/de
Application granted granted Critical
Publication of DE60108577T2 publication Critical patent/DE60108577T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G06T5/92—
    • 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
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10016—Video; Image sequence
DE60108577T 2000-03-13 2001-03-01 Videogerät mit mitteln zur histogrammveränderung Expired - Lifetime DE60108577T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP00200889 2000-03-13
EP00200889A EP1134698A1 (de) 2000-03-13 2000-03-13 Videogerät mit Mitteln zur Histogrammveränderung
PCT/EP2001/002331 WO2001069531A1 (en) 2000-03-13 2001-03-01 Video-apparatus with histogram modification means

Publications (2)

Publication Number Publication Date
DE60108577D1 true DE60108577D1 (de) 2005-03-03
DE60108577T2 DE60108577T2 (de) 2006-01-12

Family

ID=8171187

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60108577T Expired - Lifetime DE60108577T2 (de) 2000-03-13 2001-03-01 Videogerät mit mitteln zur histogrammveränderung

Country Status (7)

Country Link
US (1) US6781636B2 (de)
EP (2) EP1134698A1 (de)
JP (1) JP2003527802A (de)
KR (1) KR20020025868A (de)
AT (1) ATE288111T1 (de)
DE (1) DE60108577T2 (de)
WO (1) WO2001069531A1 (de)

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US6380945B1 (en) * 1998-11-09 2002-04-30 Broadcom Corporation Graphics display system with color look-up table loading mechanism
KR100439172B1 (ko) * 2001-11-23 2004-07-05 한국전자통신연구원 고화질 디지털 텔레비전의 고정 휘도 제어 장치와 고정휘도 생성 및 출력 방법
EP1540944A1 (de) * 2002-09-09 2005-06-15 Koninklijke Philips Electronics N.V. Verfahren zur signalrekonstruktion, abbildungseinrichtung und computerprogrammprodukt
US7295345B2 (en) * 2003-04-29 2007-11-13 Eastman Kodak Company Method for calibration independent defect correction in an imaging system
US7317462B2 (en) * 2004-03-29 2008-01-08 Vastview Technologies, Inc. Method for luminance compensation of liquid crystal display and its device
TWI237497B (en) 2004-05-07 2005-08-01 Quanta Comp Inc High speed and high accuracy image adjust apparatus and method
TW200612385A (en) * 2004-10-08 2006-04-16 Mstar Semiconductor Inc Image contrast enhancing device and method thereof
US7986351B2 (en) * 2005-01-27 2011-07-26 Qualcomm Incorporated Luma adaptation for digital image processing
US8606037B2 (en) * 2005-08-24 2013-12-10 Intel Corporation Techniques to improve contrast enhancement
JP4504294B2 (ja) * 2005-09-30 2010-07-14 株式会社東芝 映像信号処理装置及び映像信号処理方法
US7894686B2 (en) * 2006-01-05 2011-02-22 Lsi Corporation Adaptive video enhancement gain control
US20080042943A1 (en) * 2006-06-16 2008-02-21 Cok Ronald S Method and apparatus for averaged luminance and uniformity correction in an am-el display
DE102006056153A1 (de) * 2006-11-28 2008-05-29 Rohde & Schwarz Gmbh & Co. Kg Verfahren und Vorrichtung zur Auswahl einer Farbstufe und einer Helligkeitsstufe für Bildpunkte eines Displays
US8260077B2 (en) * 2006-11-29 2012-09-04 Mstar Semiconductor, Inc. Method and apparatus for eliminating image blur
US8159616B2 (en) * 2008-03-27 2012-04-17 Bang & Olufsen A/S Histogram and chrominance processing
KR101448642B1 (ko) * 2008-04-22 2014-10-08 엘지전자 주식회사 영상기기의 블랙 레벨 조정 방법 및 그 방법을 채용한영상기기
US20110154426A1 (en) * 2008-08-22 2011-06-23 Ingo Tobias Doser Method and system for content delivery
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
JP2013118675A (ja) * 2013-01-25 2013-06-13 Nippon Hoso Kyokai <Nhk> 画像処理装置、符号化装置、復号装置及びプログラム
JP2013102523A (ja) * 2013-01-25 2013-05-23 Nippon Hoso Kyokai <Nhk> 画像処理装置、符号化装置、復号装置及びプログラム
JP6426433B2 (ja) 2014-10-27 2018-11-21 株式会社日立製作所 画像処理装置、画像処理方法、ｐｏｉ情報作成システム、警告システム、及び誘導システム

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GB2046051B (en) * 1979-03-29 1983-01-26 Philips Electronic Associated Real time histogram modification system for image processing
DE3107901A1 (de) 1981-03-02 1982-09-16 Siemens AG, 1000 Berlin und 8000 München Digitale echtzeit-fernseh-bildverarbeitungseinrichtung
JPS60139080A (ja) * 1983-12-27 1985-07-23 Canon Inc 画像処理装置
DE3629403C2 (de) 1986-08-29 1994-09-29 Agfa Gevaert Ag Verfahren zur Korrektur der Farbsättigung bei der elektronischen Bildverarbeitung
US5063607A (en) * 1988-10-24 1991-11-05 Hughes Aircraft Company Image contrast enhancement technique
US5068718A (en) 1988-11-04 1991-11-26 Fuji Photo Film Co., Ltd. Image quality correcting system for use with an imaging apparatus
JPH02301295A (ja) * 1989-05-15 1990-12-13 Dainippon Printing Co Ltd ビデオプリンタ装置
JPH0787587B2 (ja) * 1990-02-16 1995-09-20 松下電器産業株式会社 階調補正装置
US5388168A (en) 1990-11-19 1995-02-07 Matsushita Electric Industrial Co., Ltd. Picture quality improving circuit using a cumulative histogram
US5544258A (en) * 1991-03-14 1996-08-06 Levien; Raphael L. Automatic tone correction of images using non-linear histogram processing
JPH0799862B2 (ja) * 1991-03-22 1995-10-25 松下電器産業株式会社 階調補正装置
JP3019479B2 (ja) * 1991-06-28 2000-03-13 松下電器産業株式会社 階調補正装置
JP3208814B2 (ja) 1992-01-09 2001-09-17 松下電器産業株式会社 映像信号補正装置
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
DE4423224C2 (de) * 1994-07-01 1998-02-26 Harris Corp Videosignal-Dekoder und Verfahren zur Dekodierung von Videosignalen
JP3501252B2 (ja) * 1995-06-16 2004-03-02 三菱電機株式会社 階調補正装置
US6463173B1 (en) * 1995-10-30 2002-10-08 Hewlett-Packard Company System and method for histogram-based image contrast enhancement
KR100200363B1 (ko) * 1996-10-10 1999-06-15 윤종용 영상의 다이나믹 레인지 확대 장치
FI104521B (fi) * 1997-01-30 2000-02-15 Nokia Multimedia Network Termi Menetelmä kuvasekvenssien kontrastin parantamiseksi
KR100261214B1 (ko) * 1997-02-27 2000-07-01 윤종용 영상처리 시스템의 콘트라스트 확장장치에서 히스토그램 등화방법 및 장치
US6373533B1 (en) * 1997-03-06 2002-04-16 Matsushita Electric Industrial Co., Ltd. Image quality correction circuit for video signals
US6449390B1 (en) * 1997-09-24 2002-09-10 Canon Kabushiki Kaisha Image processing apparatus and method therefor

Also Published As

Publication number Publication date
JP2003527802A (ja) 2003-09-16
EP1188147A1 (de) 2002-03-20
KR20020025868A (ko) 2002-04-04
US6781636B2 (en) 2004-08-24
WO2001069531A1 (en) 2001-09-20
ATE288111T1 (de) 2005-02-15
EP1134698A1 (de) 2001-09-19
EP1188147B1 (de) 2005-01-26
DE60108577T2 (de) 2006-01-12
US20010052945A1 (en) 2001-12-20

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Legal Events

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8320 Willingness to grant licences declared (paragraph 23)
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: IPG ELECTRONICS 503 LTD., ST. PETER PORT, GUER, GB

8328 Change in the person/name/address of the agent

Representative=s name: PATENTANWAELTE BRESSEL UND PARTNER, 12489 BERLIN

R082 Change of representative

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