WO2009044827A1 - 色調整回路 - Google Patents

色調整回路 Download PDF

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Publication number
WO2009044827A1
WO2009044827A1 PCT/JP2008/067957 JP2008067957W WO2009044827A1 WO 2009044827 A1 WO2009044827 A1 WO 2009044827A1 JP 2008067957 W JP2008067957 W JP 2008067957W WO 2009044827 A1 WO2009044827 A1 WO 2009044827A1
Authority
WO
WIPO (PCT)
Prior art keywords
range
color
negative
positive
input
Prior art date
Application number
PCT/JP2008/067957
Other languages
English (en)
French (fr)
Inventor
Koji Otsuka
Daisuke Koyama
Osamu Mamba
Original Assignee
Sharp Kabushiki Kaisha
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 Sharp Kabushiki Kaisha filed Critical Sharp Kabushiki Kaisha
Priority to CN2008801194384A priority Critical patent/CN101889454B/zh
Priority to EP08835949A priority patent/EP2200328A4/en
Priority to JP2009536088A priority patent/JPWO2009044827A1/ja
Priority to US12/681,482 priority patent/US8466930B2/en
Publication of WO2009044827A1 publication Critical patent/WO2009044827A1/ja

Links

Classifications

    • 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
    • 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
    • G09G5/026—Control of mixing and/or overlay of colours in general
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/6002—Corrections within particular colour systems
    • H04N1/6005—Corrections within particular colour systems with luminance or chrominance signals, e.g. LC1C2, HSL or YUV
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/6058—Reduction of colour to a range of reproducible colours, e.g. to ink- reproducible colour gamut
    • 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
    • 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
    • G09G2320/0666—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

Abstract

ＢがＵ軸に近く、ＲがＶ軸に近いことに注目し、各色の向きに沿う色の調整パラメータの例を示すと、入力のＶが負の範囲にある場合、Ｂの影響度は小さいことがわかり演算量削減のためＢ成分に関しては演算から省く。同様に、Ｂが正の範囲、Ｕが正の範囲、Ｕが負の範囲において影響度の小さい成分を省略すると、図に示される向きの調整パラメータＡＲ、ＡＧ、ＡＢが定義できる。入力のＶが正の範囲にある場合には、ＡＲを入力のＶに乗算することによりＶ成分の調整を行うことができる。入力のＶが負の範囲、Ｕが正の範囲、Ｕが負の範囲についても、それぞれ同様に処理することを考えると、ＲＧＢのそれぞれの調整パラメータの値を、１より大きく設定したり、１より小さく設定したりすることにより、輝度とは独立に、強弱させたい色成分の方向へＵＶの値を近づけるように色の濃淡を調整する色変換処理を行うことができる。これにより色変換における処理の負担を軽減することが可能になる。
PCT/JP2008/067957 2007-10-05 2008-10-02 色調整回路 WO2009044827A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN2008801194384A CN101889454B (zh) 2007-10-05 2008-10-02 色彩调节电路
EP08835949A EP2200328A4 (en) 2007-10-05 2008-10-02 COLOR MATCHING CIRCUIT
JP2009536088A JPWO2009044827A1 (ja) 2007-10-05 2008-10-02 色調整回路
US12/681,482 US8466930B2 (en) 2007-10-05 2008-10-02 Color adjustment circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007262482 2007-10-05
JP2007-262482 2007-10-05

Publications (1)

Publication Number Publication Date
WO2009044827A1 true WO2009044827A1 (ja) 2009-04-09

Family

ID=40526250

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/067957 WO2009044827A1 (ja) 2007-10-05 2008-10-02 色調整回路

Country Status (5)

Country Link
US (1) US8466930B2 (ja)
EP (1) EP2200328A4 (ja)
JP (2) JPWO2009044827A1 (ja)
CN (1) CN101889454B (ja)
WO (1) WO2009044827A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011083808A1 (ja) * 2010-01-07 2011-07-14 シャープ株式会社 液晶表示装置および信号変換回路

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5909405B2 (ja) 2012-04-27 2016-04-26 ルネサスエレクトロニクス株式会社 半導体装置
US20130342562A1 (en) * 2012-06-26 2013-12-26 Peter Rae Shintani Visual Accessibility for Vision Impaired
JP2015133638A (ja) 2014-01-14 2015-07-23 三星ディスプレイ株式會社Ｓａｍｓｕｎｇ Ｄｉｓｐｌａｙ Ｃｏ．，Ｌｔｄ． 画像処理装置および画像処理方法
CN111508038A (zh) * 2020-04-17 2020-08-07 北京百度网讯科技有限公司 图像处理方法、装置、电子设备及计算机可读存储介质

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6119292A (ja) 1984-07-06 1986-01-28 Hitachi Ltd 色差マトリクス補正回路
JP2001128191A (ja) * 1999-08-18 2001-05-11 Fuji Photo Film Co Ltd 画像処理方法および装置並びに記録媒体
JP2002058042A (ja) * 2000-08-11 2002-02-22 Rohm Co Ltd 色相変換方法
JP2005025122A (ja) * 2003-07-03 2005-01-27 Sony Corp 出力データ制御装置、および出力データ制御方法、並びにコンピュータ・プログラム
JP2005057748A (ja) * 2003-07-22 2005-03-03 Hitachi Kokusai Electric Inc 色調補正回路及び色調補正方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0373694A (ja) * 1989-08-14 1991-03-28 Sharp Corp 色差マトリクス回路
US5999335A (en) * 1996-11-06 1999-12-07 Canon Kabushiki Kaisha Projecting apparatus
JPH1117974A (ja) 1997-06-20 1999-01-22 Matsushita Graphic Commun Syst Inc 画像処理装置
US7956823B2 (en) 2001-05-30 2011-06-07 Sharp Kabushiki Kaisha Color display device, color compensation method, color compensation program, and storage medium readable by computer
JP3867586B2 (ja) * 2002-01-29 2007-01-10 株式会社日立製作所 映像表示装置
US7583403B2 (en) 2002-09-12 2009-09-01 Panasonic Corporation Image processing device
JP2005134866A (ja) 2003-04-18 2005-05-26 Sharp Corp カラー表示装置、色補正方法および色補正プログラム
SG115543A1 (en) * 2003-05-17 2005-10-28 St Microelectronics Asia Method and apparatus for compensating for chrominance saturation
US20050018054A1 (en) * 2003-07-22 2005-01-27 Akihiro Kato Chroma compensation circuit and its method
TWI224470B (en) * 2003-09-05 2004-11-21 Realtek Semiconductor Corp Adjustment method of saturation degree
WO2005027015A2 (en) * 2003-09-10 2005-03-24 Bioimagene, Inc. Method and system for quantitatively analyzing biological samples
JP4774757B2 (ja) * 2004-09-17 2011-09-14 株式会社ニコン 画像処理装置、画像処理プログラム、電子カメラ、および画像処理方法
US8164594B2 (en) * 2006-05-23 2012-04-24 Panasonic Corporation Image processing device, image processing method, program, storage medium and integrated circuit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6119292A (ja) 1984-07-06 1986-01-28 Hitachi Ltd 色差マトリクス補正回路
JP2001128191A (ja) * 1999-08-18 2001-05-11 Fuji Photo Film Co Ltd 画像処理方法および装置並びに記録媒体
JP2002058042A (ja) * 2000-08-11 2002-02-22 Rohm Co Ltd 色相変換方法
JP2005025122A (ja) * 2003-07-03 2005-01-27 Sony Corp 出力データ制御装置、および出力データ制御方法、並びにコンピュータ・プログラム
JP2005057748A (ja) * 2003-07-22 2005-03-03 Hitachi Kokusai Electric Inc 色調補正回路及び色調補正方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"NHK Television Technology Textbook", vol. 1, 1989
See also references of EP2200328A4 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011083808A1 (ja) * 2010-01-07 2011-07-14 シャープ株式会社 液晶表示装置および信号変換回路
US8947476B2 (en) 2010-01-07 2015-02-03 Sharp Kabushiki Kaisha Liquid-crystal display and signal converting circuit
JP5872901B2 (ja) * 2010-01-07 2016-03-01 シャープ株式会社 液晶表示装置および信号変換回路

Also Published As

Publication number Publication date
US8466930B2 (en) 2013-06-18
CN101889454A (zh) 2010-11-17
CN101889454B (zh) 2013-01-30
EP2200328A4 (en) 2013-01-16
JP4874428B2 (ja) 2012-02-15
US20100277500A1 (en) 2010-11-04
JPWO2009044827A1 (ja) 2011-02-10
EP2200328A1 (en) 2010-06-23
JP2011155691A (ja) 2011-08-11

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