[go: up one dir, main page]

WO2009031661A1 - 色補正回路及びこれを用いた画像表示装置 - Google Patents

色補正回路及びこれを用いた画像表示装置 Download PDF

Info

Publication number
WO2009031661A1
WO2009031661A1 PCT/JP2008/066104 JP2008066104W WO2009031661A1 WO 2009031661 A1 WO2009031661 A1 WO 2009031661A1 JP 2008066104 W JP2008066104 W JP 2008066104W WO 2009031661 A1 WO2009031661 A1 WO 2009031661A1
Authority
WO
WIPO (PCT)
Prior art keywords
color correction
display device
image display
same
correction circuit
Prior art date
Application number
PCT/JP2008/066104
Other languages
English (en)
French (fr)
Inventor
Takeshi Adachi
Original Assignee
Mitsumi Electric Co., Ltd.
Atrc Corporation
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
Priority claimed from JP2008225251A external-priority patent/JP5023024B2/ja
Application filed by Mitsumi Electric Co., Ltd., Atrc Corporation filed Critical Mitsumi Electric Co., Ltd.
Priority to CN2008801059109A priority Critical patent/CN101796572B/zh
Priority to US12/675,330 priority patent/US8594421B2/en
Publication of WO2009031661A1 publication Critical patent/WO2009031661A1/ja

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2003—Display of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G09G5/06—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed using colour palettes, e.g. look-up tables
    • 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
    • H04N9/643—Hue control means, e.g. flesh tone control
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/06—Colour space transformation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

　本発明は、輝度情報及び色度ヒストグラムからその映像の特徴に応じて特定の色相を強調または抑制することによって、最適な映像信号の色補正を行えるようにするとともに、任意の色相の色補正を行うことで表示デバイスの色特性を補正することができる色補正回路及びこれを用いた画像表示装置を提供することを目的とする。そのために、本発明は、入力された映像信号の輝度情報と、彩度及び色相を含む色度ヒストグラム情報とを検出する検出部(１１～１４)と、該検出部により検出された前記輝度情報及び前記色度ヒストグラム情報に基づいて、前記映像信号の色再現を制御するための制御部(１５，１６)と、を備えたことを特徴とする。
PCT/JP2008/066104 2007-09-06 2008-09-05 色補正回路及びこれを用いた画像表示装置 WO2009031661A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2008801059109A CN101796572B (zh) 2007-09-06 2008-09-05 色彩补正电路以及使用该色彩补正电路的图像显示装置
US12/675,330 US8594421B2 (en) 2007-09-06 2008-09-05 Color correction circuit and image display apparatus using same

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007230953 2007-09-06
JP2007-230953 2007-09-06
JP2008225251A JP5023024B2 (ja) 2007-09-06 2008-09-02 色補正回路及びこれを用いた画像表示装置
JP2008-225251 2008-09-02

Publications (1)

Publication Number Publication Date
WO2009031661A1 true WO2009031661A1 (ja) 2009-03-12

Family

ID=40428973

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/066104 WO2009031661A1 (ja) 2007-09-06 2008-09-05 色補正回路及びこれを用いた画像表示装置

Country Status (1)

Country Link
WO (1) WO2009031661A1 (ja)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000316095A (ja) * 1999-04-30 2000-11-14 Matsushita Research Institute Tokyo Inc 画像処理装置および画像処理方法
JP2006093753A (ja) * 2004-09-21 2006-04-06 Hitachi Ltd 映像表示装置
WO2006095496A1 (ja) * 2005-03-10 2006-09-14 Sharp Kabushiki Kaisha 色変換装置、プログラム、画像表示装置及び携帯型端末装置
JP2006267140A (ja) * 2005-03-22 2006-10-05 Hitachi Ltd 映像処理装置および携帯端末装置
JP2006311179A (ja) * 2005-04-28 2006-11-09 Hitachi Ltd 映像表示装置、それに用いる映像信号処理回路、及び映像信号の色飽和度制御方法
JP2007017862A (ja) * 2005-07-11 2007-01-25 Mitsubishi Electric Corp 画像表示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000316095A (ja) * 1999-04-30 2000-11-14 Matsushita Research Institute Tokyo Inc 画像処理装置および画像処理方法
JP2006093753A (ja) * 2004-09-21 2006-04-06 Hitachi Ltd 映像表示装置
WO2006095496A1 (ja) * 2005-03-10 2006-09-14 Sharp Kabushiki Kaisha 色変換装置、プログラム、画像表示装置及び携帯型端末装置
JP2006267140A (ja) * 2005-03-22 2006-10-05 Hitachi Ltd 映像処理装置および携帯端末装置
JP2006311179A (ja) * 2005-04-28 2006-11-09 Hitachi Ltd 映像表示装置、それに用いる映像信号処理回路、及び映像信号の色飽和度制御方法
JP2007017862A (ja) * 2005-07-11 2007-01-25 Mitsubishi Electric Corp 画像表示装置

Similar Documents

Publication Publication Date Title
TW200721806A (en) Image processing apparatus, image display and image processing method
JP2007150379A5 (ja)
WO2007044842A3 (en) Automatic white point adjustment during video display
US8447363B2 (en) Mobile phone terminal, image display control method, program thereof and program recording medium
JP4468467B2 (ja) 映像信号制御装置、映像表示システム、及び映像信号制御方法
WO2008058244A3 (en) Method and apparatus for color image correction
WO2009001467A1 (ja) 低照度環境における撮影画像の明るさを改善する電子機器
TW200833128A (en) Method for performing chromatic adaptation while displaying image, and corresponding display circuit and device
EP1347654A3 (en) Video correction apparatus and method, video correction program, and recording medium on which the program is recorded
TW200614825A (en) Methods and systems for color image processing
US20130027371A1 (en) Electronic device, method for adjusting color saturation, program therefor, and recording medium
US20130177206A1 (en) Image processing apparatus and image processing method
TW200701761A (en) Method for processing color signal
TW200520559A (en) Image pickup apparatus
JP2012039271A5 (ja)
CN103079077A (zh) 一种图像处理方法
WO2006091584A3 (en) Local saturation adjustment for images
JP2012027547A5 (ja)
KR20090041695A (ko) 주변 광원에 의한 화이트 밸런스 보상 장치 및 방법
TWI485694B (zh) 影像色彩調整方法與其電子裝置
US20160163027A1 (en) Color moire reducing method, color moire reducing apparatus, and image processing apparatus
WO2009031661A1 (ja) 色補正回路及びこれを用いた画像表示装置
WO2006094265A3 (en) Sharpness filtering for picture-smoothing architectures
WO2009018494A3 (en) Scene-dependent auto exposure control
JP2011151465A (ja) 映像処理装置及び色温度補正方法

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200880105910.9

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08829402

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 12675330

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08829402

Country of ref document: EP

Kind code of ref document: A1