JP4504284B2 - 映像信号処理装置及び映像信号処理方法 - Google Patents

映像信号処理装置及び映像信号処理方法 Download PDF

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Publication number
JP4504284B2
JP4504284B2 JP2005249784A JP2005249784A JP4504284B2 JP 4504284 B2 JP4504284 B2 JP 4504284B2 JP 2005249784 A JP2005249784 A JP 2005249784A JP 2005249784 A JP2005249784 A JP 2005249784A JP 4504284 B2 JP4504284 B2 JP 4504284B2
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Japan
Prior art keywords
luminance
histogram data
frequency
luminance level
video signal
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Expired - Fee Related
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JP2005249784A
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English (en)
Japanese (ja)
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JP2007067687A (ja
JP2007067687A5 (enExample
Inventor
弘俊 宮沢
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Toshiba Corp
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Toshiba Corp
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Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP2005249784A priority Critical patent/JP4504284B2/ja
Priority to US11/508,229 priority patent/US20070046828A1/en
Priority to CNB2006101288045A priority patent/CN100463494C/zh
Publication of JP2007067687A publication Critical patent/JP2007067687A/ja
Publication of JP2007067687A5 publication Critical patent/JP2007067687A5/ja
Application granted granted Critical
Publication of JP4504284B2 publication Critical patent/JP4504284B2/ja
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
    • H04N9/69—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits for modifying the colour signals by gamma correction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4318—Generation of visual interfaces for content selection or interaction; Content or additional data rendering by altering the content in the rendering process, e.g. blanking, blurring or masking an image region
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/73—Colour balance circuits, e.g. white balance circuits or colour temperature control

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Controls And Circuits For Display Device (AREA)
JP2005249784A 2005-08-30 2005-08-30 映像信号処理装置及び映像信号処理方法 Expired - Fee Related JP4504284B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2005249784A JP4504284B2 (ja) 2005-08-30 2005-08-30 映像信号処理装置及び映像信号処理方法
US11/508,229 US20070046828A1 (en) 2005-08-30 2006-08-23 Video signal processing apparatus and video signal processing method
CNB2006101288045A CN100463494C (zh) 2005-08-30 2006-08-30 视频信号处理设备及视频信号处理方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005249784A JP4504284B2 (ja) 2005-08-30 2005-08-30 映像信号処理装置及び映像信号処理方法

Publications (3)

Publication Number Publication Date
JP2007067687A JP2007067687A (ja) 2007-03-15
JP2007067687A5 JP2007067687A5 (enExample) 2007-12-06
JP4504284B2 true JP4504284B2 (ja) 2010-07-14

Family

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Family Applications (1)

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JP2005249784A Expired - Fee Related JP4504284B2 (ja) 2005-08-30 2005-08-30 映像信号処理装置及び映像信号処理方法

Country Status (3)

Country Link
US (1) US20070046828A1 (enExample)
JP (1) JP4504284B2 (enExample)
CN (1) CN100463494C (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4556982B2 (ja) * 2007-10-01 2010-10-06 ソニー株式会社 映像信号処理装置および映像信号処理方法
KR101397036B1 (ko) 2007-11-30 2014-05-20 엘지전자 주식회사 영상기기의 영상 신호 출력 방법 및 그 방법을 채용한영상기기
CN101340510B (zh) * 2008-08-07 2010-06-23 中兴通讯股份有限公司 一种视频增强的方法及其装置
JP5201038B2 (ja) * 2009-03-18 2013-06-05 株式会社Ｊｖｃケンウッド 映像信号処理方法及び映像信号処理装置
WO2010113230A1 (ja) * 2009-03-31 2010-10-07 パナソニック株式会社 映像信号処理方法
JP5165076B2 (ja) * 2011-01-31 2013-03-21 シャープ株式会社 映像表示装置
CN111063319B (zh) * 2018-10-16 2021-05-18 深圳Tcl新技术有限公司 基于背光调整的图像动态增强方法、装置和计算机设备
JP7185656B2 (ja) * 2020-03-30 2022-12-07 Ｔｖｓ Ｒｅｇｚａ株式会社 映像信号処理装置および映像信号処理方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2512562B2 (ja) * 1989-10-12 1996-07-03 松下電器産業株式会社 階調補正装置
JPH1023347A (ja) * 1996-07-02 1998-01-23 Matsushita Electric Ind Co Ltd 階調補正装置
FI104521B (fi) * 1997-01-30 2000-02-15 Nokia Multimedia Network Termi Menetelmä kuvasekvenssien kontrastin parantamiseksi
US5949918A (en) * 1997-05-21 1999-09-07 Sarnoff Corporation Method and apparatus for performing image enhancement
JP3790879B2 (ja) * 1998-08-05 2006-06-28 コニカミノルタビジネステクノロジーズ株式会社 画像処理装置、画像処理方法及び画像処理プログラムを記録した記録媒体
TWI231701B (en) * 2001-06-14 2005-04-21 Matsushita Electric Industrial Co Ltd Automatic tone correction device, automatic tone correction method, and tone correction program recording medium
EP1345172A1 (en) * 2002-02-26 2003-09-17 Sony International (Europe) GmbH Contrast enhancement for digital images
JP4373128B2 (ja) * 2003-05-19 2009-11-25 パナソニック株式会社 階調補正装置
JP4533330B2 (ja) * 2005-04-12 2010-09-01 キヤノン株式会社 画像形成装置及び画像形成方法
US7352410B2 (en) * 2005-05-31 2008-04-01 Kolorific, Inc. Method and system for automatic brightness and contrast adjustment of a video source
JP4551836B2 (ja) * 2005-07-29 2010-09-29 株式会社東芝 映像信号処理装置及び映像信号処理方法

Also Published As

Publication number Publication date
JP2007067687A (ja) 2007-03-15
US20070046828A1 (en) 2007-03-01
CN1925558A (zh) 2007-03-07
CN100463494C (zh) 2009-02-18

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