JP2005039816A - グレーバランス調整及び彩度調整の方法 - Google Patents
グレーバランス調整及び彩度調整の方法 Download PDFInfo
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- JP2005039816A JP2005039816A JP2004202602A JP2004202602A JP2005039816A JP 2005039816 A JP2005039816 A JP 2005039816A JP 2004202602 A JP2004202602 A JP 2004202602A JP 2004202602 A JP2004202602 A JP 2004202602A JP 2005039816 A JP2005039816 A JP 2005039816A
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- 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
- H04N1/6027—Correction or control of colour gradation or colour contrast
-
- 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
- H04N1/6077—Colour balance, e.g. colour cast correction
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Color, Gradation (AREA)
- Facsimile Image Signal Circuits (AREA)
- Color Image Communication Systems (AREA)
- Image Processing (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
【解決手段】 初期原色データ値における相対グレー度を決定し、前記初期原色データ値における相対色度を決定し、前記初期原色データ値の各々について、対応する最大グレーバランス調整値の一部と対応する最大彩度調整値の一部とを加算して、グレーバランス化された原色データ値と彩度調整された原色データ値とを各々生成する。前記対応する最大グレーバランス調整値の一部が、前記相対グレー度の関数であり、前記最大彩度調整値の一部が、前記相対色度の関数である。
【選択図】図6
Description
for(m=0.0; m<1.0; m+=0.07){
for(y=0.0; y<1.0; y+=0.07){
gray = min(c,min(m,y));
if(c-gray<0.15 && m-gray<0.15 && y-gray<0.15)
printf("%2.4f %2.4f %2.4f %2.4f\n", c,m,y,0.0);
}
}
}
Claims (3)
- 初期原色データ値における相対グレー度を決定し、
前記初期原色データ値における相対色度を決定し、
前記初期原色データ値の各々について、対応する最大グレーバランス調整値の一部と対応する最大彩度調整値の一部とを加算して、グレーバランス化された原色データ値と彩度調整された原色データ値とを各々生成する、
グレーバランス調整及び彩度調整の方法であって、
前記対応する最大グレーバランス調整値の一部が、前記相対グレー度の関数であり、前記最大彩度調整値の一部が、前記相対色度の関数である、
方法。 - 前記相対グレー度を決定することが、前記初期原色データ値の最小値と前記初期原色データ値の最大値との比を計算することを含む、請求項1に記載の方法。
- 前記相対色度を決定することが、(1−RATIO)を計算することを含み、
RATIOは、前記初期原色データ値の最小値と前記初期原色データ値の最大値との比である、
請求項1に記載の方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/620,047 US7453591B2 (en) | 2003-07-14 | 2003-07-14 | Color saturation adjustment |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005039816A true JP2005039816A (ja) | 2005-02-10 |
JP4417798B2 JP4417798B2 (ja) | 2010-02-17 |
Family
ID=33490856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004202602A Expired - Fee Related JP4417798B2 (ja) | 2003-07-14 | 2004-07-09 | グレーバランス調整及び彩度調整の方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7453591B2 (ja) |
EP (1) | EP1501281B1 (ja) |
JP (1) | JP4417798B2 (ja) |
CN (1) | CN1578384B (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7355753B2 (en) * | 2003-07-14 | 2008-04-08 | Xerox Corporation | Color saturation adjustment |
US7734114B1 (en) | 2005-12-07 | 2010-06-08 | Marvell International Ltd. | Intelligent saturation of video data |
TWI347787B (en) * | 2008-04-02 | 2011-08-21 | Au Optronics Corp | Saturation adjustment method and related color adjustment system |
DE102011015306A1 (de) * | 2011-03-29 | 2012-10-04 | Heidelberger Druckmaschinen Ag | Verfahren zur Graubalancekorrektur eines Druckprozesses |
US9607575B2 (en) | 2013-05-13 | 2017-03-28 | Asustek Computer Inc. | Display mode adjusting method of display device and display mode adjusting module thereof |
CN104157261B (zh) * | 2013-05-13 | 2017-04-12 | 华硕电脑股份有限公司 | 显示装置的显示模式调整方法及其显示模式调整模块 |
TWI505255B (zh) * | 2013-07-31 | 2015-10-21 | Au Optronics Corp | 畫素結構 |
TWI510101B (zh) * | 2013-09-12 | 2015-11-21 | Au Optronics Corp | 飽和度調整方法與色彩調整系統 |
CN104553302B (zh) * | 2013-10-17 | 2017-01-04 | 北大方正集团有限公司 | 一种灰平衡校准方法及装置 |
CN106411417B (zh) * | 2016-06-24 | 2019-06-25 | 多米袋南京金融信息服务有限公司 | 一种基于抖抖声波信号的超声波编码系统 |
CN112073594B (zh) * | 2019-05-25 | 2023-03-21 | 森大(深圳)技术有限公司 | 灰平衡调节方法、装置及计算机可读存储介质 |
US11652950B1 (en) * | 2022-06-30 | 2023-05-16 | Xerox Corporation | Methods and systems for handling drifting of colors in printing scenarios |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3109190C2 (de) | 1981-03-11 | 1985-07-11 | Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel | Verfahren zur Reproduktion farbiger Vorlagen im Vierfarbendruck unter Farbrücknahme |
US5231504A (en) * | 1991-12-30 | 1993-07-27 | Xerox Corporation | Method for improved color reproduction using linear mixing calculations based on positional relationships between an original color and an achromatic region in a linear mixing space |
DE69332251T2 (de) * | 1992-09-30 | 2003-08-07 | Hewlett Packard Co | Verfahren zur Minderung der Tintenmigration für den digitalen Farbdruck |
US5604567A (en) | 1994-06-03 | 1997-02-18 | Xerox Corporation | Printer color and gray balance adjustment system |
WO1996008913A1 (en) | 1994-09-16 | 1996-03-21 | Linotype-Hell Ag | Black recalculation for arbitrary hsl corrections in cmy color space |
US5710824A (en) * | 1996-03-13 | 1998-01-20 | Xerox Corporation | System to improve printer gamut |
JPH1013697A (ja) * | 1996-06-18 | 1998-01-16 | Canon Inc | 画像処理装置およびその方法 |
US6449060B1 (en) * | 1996-07-22 | 2002-09-10 | Canon Kabushiki Kaisha | Image processing apparatus and method |
JP2002300386A (ja) * | 2001-03-30 | 2002-10-11 | Fuji Photo Film Co Ltd | 画像処理方法 |
US7085008B2 (en) * | 2002-03-20 | 2006-08-01 | Eastman Kodak Company | Digital color image processing method for improved tone scale reproduction |
US7102669B2 (en) * | 2002-04-02 | 2006-09-05 | Freescale Semiconductor, Inc. | Digital color image pre-processing |
JP3698118B2 (ja) * | 2002-06-05 | 2005-09-21 | 三菱電機株式会社 | 色変換装置および色変換方法 |
US7176935B2 (en) * | 2003-10-21 | 2007-02-13 | Clairvoyante, Inc. | Gamut conversion system and methods |
-
2003
- 2003-07-14 US US10/620,047 patent/US7453591B2/en not_active Expired - Fee Related
-
2004
- 2004-07-09 JP JP2004202602A patent/JP4417798B2/ja not_active Expired - Fee Related
- 2004-07-13 EP EP04016454A patent/EP1501281B1/en not_active Expired - Fee Related
- 2004-07-14 CN CN200410071205.5A patent/CN1578384B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20050012943A1 (en) | 2005-01-20 |
CN1578384B (zh) | 2010-05-26 |
EP1501281A3 (en) | 2006-02-08 |
EP1501281A2 (en) | 2005-01-26 |
CN1578384A (zh) | 2005-02-09 |
US7453591B2 (en) | 2008-11-18 |
JP4417798B2 (ja) | 2010-02-17 |
EP1501281B1 (en) | 2012-04-25 |
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