SG138583A1 - Integrated histogram auto adaptive contrast control (acc) - Google Patents

Integrated histogram auto adaptive contrast control (acc)

Info

Publication number
SG138583A1
SG138583A1 SG200704764-0A SG2007047640A SG138583A1 SG 138583 A1 SG138583 A1 SG 138583A1 SG 2007047640 A SG2007047640 A SG 2007047640A SG 138583 A1 SG138583 A1 SG 138583A1
Authority
SG
Singapore
Prior art keywords
luminance
histogram
acc
created
contrast control
Prior art date
Application number
SG200704764-0A
Other languages
English (en)
Inventor
Greg Neal
Original Assignee
Genesis Microchip Inc
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 Genesis Microchip Inc filed Critical Genesis Microchip Inc
Publication of SG138583A1 publication Critical patent/SG138583A1/en

Links

Classifications

    • 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
    • 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
    • H04N5/202—Gamma control

Landscapes

  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Picture Signal Circuits (AREA)
  • Television Receiver Circuits (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Image Analysis (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Image Processing (AREA)
SG200704764-0A 2006-06-26 2007-06-25 Integrated histogram auto adaptive contrast control (acc) SG138583A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US81684506P 2006-06-26 2006-06-26
US11/525,276 US7826680B2 (en) 2006-06-26 2006-09-21 Integrated histogram auto adaptive contrast control (ACC)

Publications (1)

Publication Number Publication Date
SG138583A1 true SG138583A1 (en) 2008-01-28

Family

ID=38461113

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200704764-0A SG138583A1 (en) 2006-06-26 2007-06-25 Integrated histogram auto adaptive contrast control (acc)

Country Status (6)

Country Link
US (1) US7826680B2 (ja)
EP (1) EP1874038A1 (ja)
JP (1) JP2008072692A (ja)
KR (1) KR20070122408A (ja)
SG (1) SG138583A1 (ja)
TW (1) TW200818874A (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
SG138579A1 (en) 2006-06-26 2008-01-28 Genesis Microchip Inc Universal, highly configurable video and graphic measurement device
CA2669809A1 (en) * 2006-11-15 2008-05-22 24Eight Llc Image-based searching apparatus and method
KR101761413B1 (ko) 2010-11-24 2017-08-07 엘지디스플레이 주식회사 화질 향상 방법과 이를 이용한 표시장치
KR101492682B1 (ko) * 2011-09-23 2015-02-13 엘지디스플레이 주식회사 유기전계발광표시장치와 이의 구동방법
TWI504268B (zh) * 2012-10-02 2015-10-11 Shao Yang Wang 動態式影像局部對比度提升方法及電腦可讀媒體
WO2014192412A1 (ja) * 2013-05-28 2014-12-04 ソニー株式会社 画像処理装置、撮像装置、画像処理方法およびプログラム
CN104240673A (zh) * 2013-06-07 2014-12-24 系统电子工业股份有限公司 动态对比强化系统和方法
US9558428B1 (en) * 2014-07-18 2017-01-31 Samuel B. Green Inductive image editing based on learned stylistic preferences
CN105407296B (zh) * 2015-11-18 2021-03-23 腾讯科技（深圳）有限公司 实时视频增强方法和装置
CN113015006B (zh) * 2020-06-04 2022-10-14 海信视像科技股份有限公司 显示设备及显示方法

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US5847773A (en) * 1991-08-30 1998-12-08 Thomson Consumer Electronics, Inc. Video system including apparatus for deactivating an automatic control arrangement
EP0613294B1 (en) 1993-02-24 1998-10-28 Matsushita Electric Industrial Co., Ltd. Gradation correction device and image sensing device therewith
JP2800633B2 (ja) * 1993-04-30 1998-09-21 富士ゼロックス株式会社 画像符号化装置
US5546474A (en) * 1993-12-21 1996-08-13 Hewlett-Packard Company Detection of photo regions in digital images
US5557298A (en) 1994-05-26 1996-09-17 Hughes Aircraft Company Method for specifying a video window's boundary coordinates to partition a video signal and compress its components
JPH11190987A (ja) 1997-10-20 1999-07-13 Sony Corp 表示装置、マーカー信号構成方法、マーカー信号検出回路、及び制御信号発生回路
WO2000063838A1 (en) 1999-04-16 2000-10-26 Izahi Corporation Automatic black level, luminosity and color compensation for digital still images and digital video
US6393148B1 (en) * 1999-05-13 2002-05-21 Hewlett-Packard Company Contrast enhancement of an image using luminance and RGB statistical metrics
US6606100B1 (en) 1999-12-02 2003-08-12 Koninklijke Philips Electronics N.V. Device for indicating the position of a window in a display and for enhancing an image in the window
US6897977B1 (en) * 2000-11-20 2005-05-24 Hall Aluminum Llc Lossy method for compressing pictures and video
CN1692369A (zh) * 2001-06-15 2005-11-02 皇家菲利浦电子有限公司 视频信息中自动的自然内容检测
US20050002566A1 (en) * 2001-10-11 2005-01-06 Riccardo Di Federico Method and apparatus for discriminating between different regions of an image
JP4550350B2 (ja) 2002-02-01 2010-09-22 株式会社ニコン 電子カメラ
US7469160B2 (en) * 2003-04-18 2008-12-23 Banks Perry S Methods and apparatus for evaluating image focus
JP4078649B2 (ja) * 2004-01-28 2008-04-23 日本ビクター株式会社 映像信号処理装置及び方法
US8085277B2 (en) 2004-01-30 2011-12-27 Broadcom Corporation System and method for clipping values of pixels in one color space so not to exceed the limits of a second color space
JP4277773B2 (ja) 2004-09-21 2009-06-10 株式会社日立製作所 映像表示装置
JP4115460B2 (ja) * 2005-04-12 2008-07-09 キヤノン株式会社 画像処理装置およびその方法、並びに、コンピュータプログラムおよび記録媒体
US8131108B2 (en) * 2005-04-22 2012-03-06 Broadcom Corporation Method and system for dynamic contrast stretch

Also Published As

Publication number Publication date
US7826680B2 (en) 2010-11-02
EP1874038A1 (en) 2008-01-02
JP2008072692A (ja) 2008-03-27
US20070297689A1 (en) 2007-12-27
KR20070122408A (ko) 2007-12-31
TW200818874A (en) 2008-04-16

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