ATE426870T1 - Bildsignalverbesserung - Google Patents

Bildsignalverbesserung

Info

Publication number
ATE426870T1
ATE426870T1 AT01919282T AT01919282T ATE426870T1 AT E426870 T1 ATE426870 T1 AT E426870T1 AT 01919282 T AT01919282 T AT 01919282T AT 01919282 T AT01919282 T AT 01919282T AT E426870 T1 ATE426870 T1 AT E426870T1
Authority
AT
Austria
Prior art keywords
picture
picture signal
parts
whole
image signal
Prior art date
Application number
AT01919282T
Other languages
English (en)
Inventor
Marina Nicolas
Michel Nieuwenhuizen
Original Assignee
Koninkl 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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Application granted granted Critical
Publication of ATE426870T1 publication Critical patent/ATE426870T1/de

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)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Picture Signal Circuits (AREA)
  • Color Image Communication Systems (AREA)
  • Processing Of Color Television Signals (AREA)
  • Glass Compositions (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
AT01919282T 2000-02-14 2001-02-13 Bildsignalverbesserung ATE426870T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00200470A EP1126410A1 (de) 2000-02-14 2000-02-14 Bildsignalverbesserung

Publications (1)

Publication Number Publication Date
ATE426870T1 true ATE426870T1 (de) 2009-04-15

Family

ID=8171005

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01919282T ATE426870T1 (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
KR20070090224A (ko) * 2004-12-01 2007-09-05 코닌클리케 필립스 일렉트로닉스 엔.브이. 전자 색 이미지 채도 처리 방법
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
CN105787909B (zh) 2012-08-08 2018-07-20 杜比实验室特许公司 用于高动态范围图像的图像处理
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
EP3869783B1 (de) * 2018-10-19 2024-09-04 Sony Group Corporation Sensorvorrichtung und signalverarbeitungsverfahren

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
EP0759253B1 (de) * 1994-05-13 1999-12-15 Koninklijke Philips Electronics N.V. Reduktion des leuchtdichteübersprechens
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
US6373533B1 (en) * 1997-03-06 2002-04-16 Matsushita Electric Industrial Co., Ltd. Image quality correction circuit for video signals
WO1998042142A1 (fr) * 1997-03-14 1998-09-24 Sony Corporation Dispositif et procede de correction de couleurs, dispositif et procede de traitement d'image
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
JP4257036B2 (ja) * 1999-02-05 2009-04-22 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 ヒストグラム等化方法
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
US7619691B2 (en) 2009-11-17
EP1183408B1 (de) 2009-03-25
KR100790327B1 (ko) 2008-01-02
EP1126410A1 (de) 2001-08-22
KR20020000166A (ko) 2002-01-04
WO2001059183A2 (en) 2001-08-16
JP2003523110A (ja) 2003-07-29
WO2001059183A3 (en) 2001-12-20
US20020180893A1 (en) 2002-12-05
EP1183408A2 (de) 2002-03-06
DE60138076D1 (de) 2009-05-07

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