KR100970621B1 - 영상 보정 장치 - Google Patents
영상 보정 장치 Download PDFInfo
- Publication number
- KR100970621B1 KR100970621B1 KR1020030033402A KR20030033402A KR100970621B1 KR 100970621 B1 KR100970621 B1 KR 100970621B1 KR 1020030033402 A KR1020030033402 A KR 1020030033402A KR 20030033402 A KR20030033402 A KR 20030033402A KR 100970621 B1 KR100970621 B1 KR 100970621B1
- Authority
- KR
- South Korea
- Prior art keywords
- color
- image
- lookup table
- color gamut
- correction
- Prior art date
Links
- 238000003702 image correction Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 4
- 238000009835 boiling Methods 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 abstract description 17
- 238000013507 mapping Methods 0.000 abstract description 8
- 230000008859 change Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000011088 calibration curve Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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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
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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
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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
- H04N1/6002—Corrections within particular colour systems
- H04N1/6008—Corrections within particular colour systems with primary colour signals, e.g. RGB or CMY(K)
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
- Color Image Communication Systems (AREA)
- Image Processing (AREA)
Abstract
Description
Claims (3)
- 입력되는 영상의 색 성분의 색 영역을 나타내는 좌표값의 간격을 비등간격으로 보정하는 보정부;상기 보정부에서 보정된 색 영역 좌표값 중 상위 n비트에 대응하는 변환 데이터를 저장하는 룩업 테이블;상기 룩업 테이블에서 출력되는 변환 데이터와 상기 보정부가 보정한 영상의 색 영역 좌표값 중 하위 m비트에 대응하는 변환 데이터를 이용하여 선형 보간을 수행하여 색 영역이 변환된 영상을 출력하는 색 보간부; 및상기 색 보간부에서 출력되는 영상의 색 성분의 색 영역 좌표값의 간격을 등간격으로 역보정하는 역보정부;를 포함하는 영상 보정 장치.
- 제 1 항에 있어서, 상기 보정부는 입력되는 영상의 색 성분 중 특정 색 성분의 색 영역 좌표값의 간격을 비등간격으로 보정한 데이터를 저장하는 1차원 룩업 테이블을 포함하는 영상 보정 장치.
- 제 1 항에 있어서, 상기 역보정부는상기 보정부의 역과정으로 상기 색 보간부에서 출력되는 영상의 색 성분 중 특정 색 성분의 색 영역 좌표값의 간격을 등간격으로 보정한 데이터를 저장하는 1차원 룩업 테이블을 포함하는 영상 보정 장치.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030033402A KR100970621B1 (ko) | 2003-05-26 | 2003-05-26 | 영상 보정 장치 |
US10/852,098 US7259798B2 (en) | 2003-05-26 | 2004-05-25 | Image compensation apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030033402A KR100970621B1 (ko) | 2003-05-26 | 2003-05-26 | 영상 보정 장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040101700A KR20040101700A (ko) | 2004-12-03 |
KR100970621B1 true KR100970621B1 (ko) | 2010-07-15 |
Family
ID=33448254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020030033402A KR100970621B1 (ko) | 2003-05-26 | 2003-05-26 | 영상 보정 장치 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7259798B2 (ko) |
KR (1) | KR100970621B1 (ko) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4677343B2 (ja) * | 2005-01-14 | 2011-04-27 | キヤノン株式会社 | 画像表示装置及び方法 |
CN101790100B (zh) * | 2010-03-16 | 2012-06-06 | 山东大学 | 基于1931cie-xyz***的激光电视色域虚拟扩展方法 |
CN104732903A (zh) | 2013-12-18 | 2015-06-24 | 丁炜慷 | 三基色联合伽马校准 |
CN110913217B (zh) | 2014-06-19 | 2022-01-25 | Vid拓展公司 | 用于基于三维色彩映射模型参数优化的***和方法 |
SG11201701137SA (en) | 2015-05-15 | 2017-03-30 | Hewlett Packard Development Co | Printer cartridges and memory devices containing compressed multi-dimensional color tables |
JP7077698B2 (ja) * | 2018-03-20 | 2022-05-31 | 株式会社Jvcケンウッド | 撮像装置、撮像方法及び撮像プログラム |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08315123A (ja) * | 1995-05-23 | 1996-11-29 | Seiko Denshi Kiki Kk | 色補正装置 |
JPH10224648A (ja) | 1997-02-07 | 1998-08-21 | Canon Inc | 画像処理装置及び方法 |
JP2001008045A (ja) | 1999-06-23 | 2001-01-12 | Fuji Photo Film Co Ltd | 色信号処理装置 |
JP2001352456A (ja) | 2000-06-06 | 2001-12-21 | Sharp Corp | 画像処理方法及び画像処理装置並びにそれを備えた画像形成装置 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0392576B1 (en) * | 1989-04-12 | 1995-02-22 | Koninklijke Philips Electronics N.V. | Picture signal interpolation circuit |
US5053866A (en) * | 1989-08-02 | 1991-10-01 | Eastman Kodak Company | Method and an associated apparatus for calibrating a color digital hardcopy device |
US5267030A (en) * | 1989-12-22 | 1993-11-30 | Eastman Kodak Company | Method and associated apparatus for forming image data metrics which achieve media compatibility for subsequent imaging application |
US5237402A (en) * | 1991-07-30 | 1993-08-17 | Polaroid Corporation | Digital image processing circuitry |
KR940008510A (ko) * | 1992-09-14 | 1994-04-29 | 김광호 | 고체촬상소자(ccd)형 컬러비디오카메라의 비디오신호처리회로 |
KR0135846B1 (ko) * | 1994-02-02 | 1998-06-15 | 김광호 | 룩-업-테이블장치 |
US6707950B1 (en) * | 1999-06-22 | 2004-03-16 | Eastman Kodak Company | Method for modification of non-image data in an image processing chain |
JP4773594B2 (ja) * | 1999-08-30 | 2011-09-14 | エーユー オプトロニクス コーポレイション | カラー画像処理方法、カラー画像処理装置、液晶表示装置 |
JP3412583B2 (ja) * | 1999-11-08 | 2003-06-03 | 日本電気株式会社 | カラー液晶ディスプレイの駆動方法及びその回路 |
GB0007448D0 (en) * | 2000-03-29 | 2000-05-17 | Discreet Logic Inc | Gamma calibration |
US7289154B2 (en) * | 2000-05-10 | 2007-10-30 | Eastman Kodak Company | Digital image processing method and apparatus for brightness adjustment of digital images |
US7064860B1 (en) * | 2000-05-15 | 2006-06-20 | Xerox Corporation | Color-balanced TRC correction to compensate for illuminant changes in printer characterization |
US6636646B1 (en) * | 2000-07-20 | 2003-10-21 | Eastman Kodak Company | Digital image processing method and for brightness adjustment of digital images |
US7116354B2 (en) * | 2001-06-20 | 2006-10-03 | Xenogen Corporation | Absolute intensity determination for a light source in low level light imaging systems |
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2003
- 2003-05-26 KR KR1020030033402A patent/KR100970621B1/ko active IP Right Grant
-
2004
- 2004-05-25 US US10/852,098 patent/US7259798B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08315123A (ja) * | 1995-05-23 | 1996-11-29 | Seiko Denshi Kiki Kk | 色補正装置 |
JPH10224648A (ja) | 1997-02-07 | 1998-08-21 | Canon Inc | 画像処理装置及び方法 |
JP2001008045A (ja) | 1999-06-23 | 2001-01-12 | Fuji Photo Film Co Ltd | 色信号処理装置 |
JP2001352456A (ja) | 2000-06-06 | 2001-12-21 | Sharp Corp | 画像処理方法及び画像処理装置並びにそれを備えた画像形成装置 |
Also Published As
Publication number | Publication date |
---|---|
US7259798B2 (en) | 2007-08-21 |
KR20040101700A (ko) | 2004-12-03 |
US20040239815A1 (en) | 2004-12-02 |
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