DE60138076D1 - Bildsignalverbesserung - Google Patents

Bildsignalverbesserung

Info

Publication number
DE60138076D1
DE60138076D1 DE60138076T DE60138076T DE60138076D1 DE 60138076 D1 DE60138076 D1 DE 60138076D1 DE 60138076 T DE60138076 T DE 60138076T DE 60138076 T DE60138076 T DE 60138076T DE 60138076 D1 DE60138076 D1 DE 60138076D1
Authority
DE
Germany
Prior art keywords
picture
picture signal
parts
whole
image 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 - Lifetime
Application number
DE60138076T
Other languages
English (en)
Inventor
Marina M Nicolas
Michel W Nieuwenhuizen
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.)
Koninklijke Philips NV
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
Application granted granted Critical
Publication of DE60138076D1 publication Critical patent/DE60138076D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Glass Compositions (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Processing Of Color Television Signals (AREA)
  • Color Image Communication Systems (AREA)
DE60138076T 2000-02-14 2001-02-13 Bildsignalverbesserung Expired - Lifetime DE60138076D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP00200470A EP1126410A1 (de) 2000-02-14 2000-02-14 Bildsignalverbesserung
PCT/EP2001/001653 WO2001059183A2 (en) 2000-02-14 2001-02-13 Picture signal enhancement

Publications (1)

Publication Number Publication Date
DE60138076D1 true DE60138076D1 (de) 2009-05-07

Family

ID=8171005

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60138076T Expired - Lifetime DE60138076D1 (de) 2000-02-14 2001-02-13 Bildsignalverbesserung

Country Status (7)

Country Link
US (1) US7619691B2 (de)
EP (2) EP1126410A1 (de)
JP (1) JP2003523110A (de)
KR (1) KR100790327B1 (de)
AT (1) ATE426870T1 (de)
DE (1) DE60138076D1 (de)
WO (1) WO2001059183A2 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3733873B2 (ja) * 2001-06-07 2006-01-11 ノーリツ鋼機株式会社 写真画像処理装置、方法及び写真処理装置
US7426296B2 (en) * 2004-03-18 2008-09-16 Sony Corporation Human skin tone detection in YCbCr space
CN101088277A (zh) * 2004-12-01 2007-12-12 皇家飞利浦电子股份有限公司 电子彩色图像饱和度处理方法
JP4978697B2 (ja) 2007-11-06 2012-07-18 富士通株式会社 画像補正装置、画像補正方法および画像補正プログラム
US8159616B2 (en) * 2008-03-27 2012-04-17 Bang & Olufsen A/S Histogram and chrominance processing
JP4900419B2 (ja) * 2009-05-20 2012-03-21 カシオ計算機株式会社 画像処理装置、及び画像処理プログラム
US8457398B2 (en) * 2009-10-27 2013-06-04 Himax Media Solutions, Inc. Image enhancement method and apparatuses utilizing the same
JP5165076B2 (ja) * 2011-01-31 2013-03-21 シャープ株式会社 映像表示装置
CN105787908B (zh) 2012-08-08 2019-05-14 杜比实验室特许公司 用于高动态范围图像的图像处理方法、装置及存储介质
JP6705534B2 (ja) 2018-10-19 2020-06-03 ソニー株式会社 センサ装置、信号処理方法
WO2020080141A1 (ja) * 2018-10-19 2020-04-23 ソニー株式会社 センサ装置、信号処理方法

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4639769A (en) * 1985-04-01 1987-01-27 Eastman Kodak Company Modifying color digital images
JPH0787587B2 (ja) * 1990-02-16 1995-09-20 松下電器産業株式会社 階調補正装置
JP2936791B2 (ja) * 1991-05-28 1999-08-23 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
US5450502A (en) * 1993-10-07 1995-09-12 Xerox Corporation Image-dependent luminance enhancement
US5426684A (en) * 1993-11-15 1995-06-20 Eastman Kodak Company Technique for finding the histogram region of interest for improved tone scale reproduction of digital radiographic images
KR100345588B1 (ko) 1994-05-13 2002-12-05 코닌클리케 필립스 일렉트로닉스 엔.브이. 크로스루미넌스의감소
US5581370A (en) * 1995-06-05 1996-12-03 Xerox Corporation Image-dependent automatic area of interest enhancement
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
US5633511A (en) * 1995-12-22 1997-05-27 Eastman Kodak Company Automatic tone scale adjustment using image activity measures
JP3130266B2 (ja) * 1996-03-09 2001-01-31 三星電子株式会社 平均分離ヒストグラム等化を用いる映像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
US5822453A (en) * 1996-12-10 1998-10-13 Eastman Kodak Company Method for estimating and adjusting digital image contrast
US6014469A (en) * 1996-12-31 2000-01-11 Xerox Corporation System and method for selectively noise-filtering digital images
KR100213094B1 (ko) * 1997-02-21 1999-08-02 윤종용 영상 개선장치를 위한 히스토그램 및 cdf 추출방법 및 그 회로
MY118136A (en) * 1997-03-06 2004-09-30 Matsushita Electric Ind Co Ltd Image quality correction circuit for video signals
EP0920223A4 (de) * 1997-03-14 2002-11-27 Sony Corp Farbkorrektur- und bildverarbeitungsverfahren und -vorrichtung
US6556311B1 (en) * 1997-05-28 2003-04-29 Hewlett-Packard Development Co., L.P. Luminance-based color resolution enhancement
US6694051B1 (en) * 1998-06-24 2004-02-17 Canon Kabushiki Kaisha Image processing method, image processing apparatus and recording medium
WO2000046983A1 (en) * 1999-02-05 2000-08-10 Koninklijke Philips Electronics N.V. Histogram equalization
KR100634671B1 (ko) * 1999-08-13 2006-10-13 주식회사 케이티 고정밀도의 실시간 점진적 장면경계 검출기 및 그 방법
US6650774B1 (en) * 1999-10-01 2003-11-18 Microsoft Corporation Locally adapted histogram equalization

Also Published As

Publication number Publication date
ATE426870T1 (de) 2009-04-15
WO2001059183A2 (en) 2001-08-16
WO2001059183A3 (en) 2001-12-20
KR100790327B1 (ko) 2008-01-02
EP1126410A1 (de) 2001-08-22
US20020180893A1 (en) 2002-12-05
EP1183408A2 (de) 2002-03-06
KR20020000166A (ko) 2002-01-04
JP2003523110A (ja) 2003-07-29
US7619691B2 (en) 2009-11-17
EP1183408B1 (de) 2009-03-25

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Legal Events

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