KR960008992B1 - 채도 조정방법 및 장치 - Google Patents
채도 조정방법 및 장치 Download PDFInfo
- Publication number
- KR960008992B1 KR960008992B1 KR1019890011463A KR890011463A KR960008992B1 KR 960008992 B1 KR960008992 B1 KR 960008992B1 KR 1019890011463 A KR1019890011463 A KR 1019890011463A KR 890011463 A KR890011463 A KR 890011463A KR 960008992 B1 KR960008992 B1 KR 960008992B1
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- color difference
- saturation
- level
- color
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
- H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
- H04N23/85—Camera processing pipelines; Components thereof for processing colour signals for matrixing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
- H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
- H04N23/86—Camera processing pipelines; Components thereof for processing colour signals for controlling the colour saturation of colour signals, e.g. automatic chroma control circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
- H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
- H04N23/88—Camera processing pipelines; Components thereof for processing colour signals for colour balance, e.g. white-balance circuits or colour temperature control
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
Description
Claims (4)
- 피사체를 촬영하여 얻은 적·청신호의 이득을 제어하기 위한 자동 색조정방법에 사용하기 위한 채도조정방법에 있어서, 두 색차신호로부터 만들어진 채도신호의 이득을 제어하는 단계와; 피사체를 촬영하여 얻은 신호에 따라 상기 두 색차신호의 각각에 대하여 소정영역의 레벨을 초과하는고체도 색을 검출하는 단계; 상기 검출된 고채도 색에 따라 화면 전체에서 상기 고채도 색의 비에 대응하는 채도 정보를 얻는 단계; 상기 채도 정보가 감소함에 따라 상기 이득이 증가하도록 상기 채도신호의 이득을 제어하는 단계로 이루어진 것을 특징으로 하는 채도 조정방법.
- 피사체를 촬영하여 얻은 적·청신호의 이득을 제어하기 위한 자동 색조정장치에 사용하기 위한 채도 조정장치에 있어서, 두 색차신호로부터 만들어진 채도신호의 이득을 제어하기 위한 이득제어수단과; 피사체를 촬영하여 얻을 신호에 따라 상기 두 색차신호의 각각에 대하여 소정영역의 레벨을 초과하는 고채도를 검출하기 위한 색차신호 검출수단; 상기 색차신호 검출수단의 검출 출력에 따라 화면 전체에서 상기 고채도 색의 비에 대응하는 채도 정보를 얻기 위한 수단; 상기 채도 정보를 입력하여 채도 정보가 감소함에 따라 상기 이득제어수단의 이득이 증가하도록 상기 이득제어수단의 이득을 제어하기 이한 수단으로 구성된 것을 특징으로 하는 채도 조정장치.
- 제2항에 있어서, 상기 색차신호 검출수단은 피사체를 촬영하여 얻은 신호로부터 생성된 색차신호(ER-EY)중에서 고채도 색을 표시하는 색차신호(ER-EY)를 검출하도록 상한 레벨 및 하한 레벨을 각각 설정하기 위한 제1 및 제2레벨 설정수단과; 피사체를 촬영하여 얻은 신호로부터 생성된 색차신호(EE-EY)중에서 고채도 색을 표시하는 색차신호(EB-EY)를 검출하도록 상한 레벨 및 하한 레벨을 각각 설정하기 위한 제3 및 제4레벨 설정수단; 상기 색차신호(ER-EY)와 제1 및 제2레벨 설정수단에 의해 각각 설정된 상한 레벨과 하한 레벨을 입력하여 색차신호(ER-EY)가 상한 레벨과 하한 레벨의 범위를 초과할 경우 고채도 색의 검출을 표시하는 검출신호를 출력하기 위한 제1비교수단과, 상기 색차신호(EB-EY)와 제3 및 제4레벨 설정수단에 의해 각각 설정된 상한 레벨과 하한 레벨을 입력하여 색차신호(EB-EY)가 상한 레벨과 하한 레벨의 범위를 초과할 경우 고채도 색을 검출을 표시하는 검출신호를 출력하기 위한 제2비교수단으로 구성된 것을 특징으로 하는 채도 조정장치.
- 제2항에 있어서, 상기 채도정보를 얻기 위한 수단은 상기 제1 및 제2비교수단으로부터의 검출신호를 입력하여 상기 검출신호를 적분하기 위한 적분수단으로 구성된 것을 특징으로 하는 채도 조정장치.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63-216105 | 1988-08-30 | ||
JP?63-216105? | 1988-08-30 | ||
JP63216105A JPH0263394A (ja) | 1988-08-30 | 1988-08-30 | 彩度調整方法及び装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR900016794A KR900016794A (ko) | 1990-11-14 |
KR960008992B1 true KR960008992B1 (ko) | 1996-07-10 |
Family
ID=16683322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019890011463A Expired - Lifetime KR960008992B1 (ko) | 1988-08-30 | 1989-08-11 | 채도 조정방법 및 장치 |
Country Status (5)
Country | Link |
---|---|
US (1) | US5010393A (ko) |
EP (1) | EP0356711B1 (ko) |
JP (1) | JPH0263394A (ko) |
KR (1) | KR960008992B1 (ko) |
DE (1) | DE68924459T2 (ko) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5153713A (en) * | 1986-02-21 | 1992-10-06 | Canon Kabushiki Kaisha | Color temperature information forming device |
US5255077A (en) * | 1989-09-29 | 1993-10-19 | Canon Kabushiki Kaisha | White balance control based upon magnitude of flicker |
US5589879A (en) | 1993-03-26 | 1996-12-31 | Fuji Photo Film Co., Ltd. | Performing white balance correction on integrated divided areas of which average color is substantially white |
US7123293B1 (en) * | 1998-01-07 | 2006-10-17 | Fuji Photo Film Co., Ltd. | Image processing method to compensate for color differences due to a type of image sensing device |
US20040123961A1 (en) * | 1998-10-19 | 2004-07-01 | Huang Sunny En Liung | Collapsible auto shade |
KR100350789B1 (ko) * | 1999-03-04 | 2002-08-28 | 엘지전자 주식회사 | 이미지 검색시스템의 분위기 칼라 자동추출 및 원래 칼라 조정방법 |
US7190394B2 (en) | 2002-06-04 | 2007-03-13 | Micron Technology, Inc. | Method for statistical analysis of images for automatic white balance of color channel gains for image sensors |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5919515B2 (ja) * | 1978-03-07 | 1984-05-07 | ソニー株式会社 | ホワイトバランス調整回路 |
JPS59123387A (ja) * | 1982-12-29 | 1984-07-17 | Canon Inc | 撮像装置 |
JPS61269484A (ja) * | 1985-05-24 | 1986-11-28 | Fuji Photo Film Co Ltd | カラ−ビデオカメラの自動ホワイトバランス調整装置 |
US4814861A (en) * | 1985-07-10 | 1989-03-21 | Canon Kabushiki Kaisha | Signal processing apparatus with independent gain control for chrominance and color signals |
US4739393A (en) * | 1985-11-05 | 1988-04-19 | Sanyo Electric Co., Ltd. | Circuit for performing white balance correction using two color temperature sensors |
US4739392A (en) * | 1986-01-07 | 1988-04-19 | Victor Company Of Japan, Ltd. | White balance adjusting apparatus having a plurality of standard color references automatically selected by the detected color temperature |
US4883360A (en) * | 1987-08-13 | 1989-11-28 | Fuji Photo Film Co., Ltd. | Method and apparatus for automatically adjusting white balance |
JP2618908B2 (ja) * | 1987-08-13 | 1997-06-11 | 富士写真フイルム株式会社 | 自動白バランス調整方法及び装置 |
JPH0817497B2 (ja) * | 1987-08-27 | 1996-02-21 | キヤノン株式会社 | 自動ホワイト・バランス補正装置 |
JPH0787588B2 (ja) * | 1987-12-29 | 1995-09-20 | 富士写真フイルム株式会社 | 自動白バランス調整方法及び装置 |
JPH0828877B2 (ja) * | 1988-07-18 | 1996-03-21 | 富士写真フイルム株式会社 | 自動白バランス調整方法及び装置 |
-
1988
- 1988-08-30 JP JP63216105A patent/JPH0263394A/ja active Pending
-
1989
- 1989-07-27 EP EP89113906A patent/EP0356711B1/en not_active Expired - Lifetime
- 1989-07-27 US US07/385,449 patent/US5010393A/en not_active Expired - Lifetime
- 1989-07-27 DE DE68924459T patent/DE68924459T2/de not_active Expired - Lifetime
- 1989-08-11 KR KR1019890011463A patent/KR960008992B1/ko not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0356711A2 (en) | 1990-03-07 |
DE68924459D1 (de) | 1995-11-09 |
KR900016794A (ko) | 1990-11-14 |
DE68924459T2 (de) | 1996-03-07 |
EP0356711A3 (en) | 1992-07-08 |
EP0356711B1 (en) | 1995-10-04 |
US5010393A (en) | 1991-04-23 |
JPH0263394A (ja) | 1990-03-02 |
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