JPS6446391A - Method and device for automatically adjusting white balance - Google Patents
Method and device for automatically adjusting white balanceInfo
- Publication number
- JPS6446391A JPS6446391A JP62202509A JP20250987A JPS6446391A JP S6446391 A JPS6446391 A JP S6446391A JP 62202509 A JP62202509 A JP 62202509A JP 20250987 A JP20250987 A JP 20250987A JP S6446391 A JPS6446391 A JP S6446391A
- Authority
- JP
- Japan
- Prior art keywords
- color
- integrated
- color difference
- difference signal
- level
- 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.)
- Granted
Links
Landscapes
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE:To attain satisfactory white balance adjustment by blanking a color when there is the strong color (the color of large saturation) in a pattern or limiting the size of the color to a prescribed level and averaging it. CONSTITUTION:When color difference signals (ER-EY) and (EB-EY) generated from a signal obtained by photographing an object are respectively integrated and the mean value of the whole of a screen is obtained, the color difference signal stronger than a level(slice level) (the strong color difference signal) is not integrated but in place of the strong color difference signal, the prescribed level to show the color difference signal weaker than the slice level is integrated. Namely, even when the average of the whole screen of an original picture is not gray, information to remove a strong color from the original picture are integrated. Thus, approach to the gray can be executed. Thus, the erroneous control of a color failure can be erased.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62202509A JP2618908B2 (en) | 1987-08-13 | 1987-08-13 | Automatic white balance adjustment method and apparatus |
US07/231,474 US4883360A (en) | 1987-08-13 | 1988-08-12 | Method and apparatus for automatically adjusting white balance |
KR1019880010346A KR920004571B1 (en) | 1987-08-13 | 1988-08-13 | Method and device for automatically adjusting white balance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62202509A JP2618908B2 (en) | 1987-08-13 | 1987-08-13 | Automatic white balance adjustment method and apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6446391A true JPS6446391A (en) | 1989-02-20 |
JP2618908B2 JP2618908B2 (en) | 1997-06-11 |
Family
ID=16458660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62202509A Expired - Fee Related JP2618908B2 (en) | 1987-08-13 | 1987-08-13 | Automatic white balance adjustment method and apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2618908B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5010393A (en) * | 1988-08-30 | 1991-04-23 | Fuji Photo Film Co., Ltd. | Method and apparatus for adjusting chroma |
JPH03198494A (en) * | 1989-12-26 | 1991-08-29 | Sanyo Electric Co Ltd | White balance controller |
JPH03232391A (en) * | 1990-02-07 | 1991-10-16 | Sanyo Electric Co Ltd | White balance controller |
JPH03250992A (en) * | 1990-02-28 | 1991-11-08 | Sanyo Electric Co Ltd | White balance adjustment device |
US5555022A (en) * | 1989-11-17 | 1996-09-10 | Sanyo Electric Co., Ltd. | White balance adjusting apparatus for automatically adjusting white balance in response to color information signal obtained from image sensing device |
CN101976540A (en) * | 2010-11-22 | 2011-02-16 | 天津三星电子显示器有限公司 | Method for automatically adjusting grey-scale consistency of display |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60186188A (en) * | 1984-03-06 | 1985-09-21 | Fuji Photo Film Co Ltd | Automatic white balance adjusting device of color video camera |
JPS62143591A (en) * | 1985-12-18 | 1987-06-26 | Sanyo Electric Co Ltd | White balance correction control circuit |
-
1987
- 1987-08-13 JP JP62202509A patent/JP2618908B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60186188A (en) * | 1984-03-06 | 1985-09-21 | Fuji Photo Film Co Ltd | Automatic white balance adjusting device of color video camera |
JPS62143591A (en) * | 1985-12-18 | 1987-06-26 | Sanyo Electric Co Ltd | White balance correction control circuit |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5010393A (en) * | 1988-08-30 | 1991-04-23 | Fuji Photo Film Co., Ltd. | Method and apparatus for adjusting chroma |
US5555022A (en) * | 1989-11-17 | 1996-09-10 | Sanyo Electric Co., Ltd. | White balance adjusting apparatus for automatically adjusting white balance in response to color information signal obtained from image sensing device |
JPH03198494A (en) * | 1989-12-26 | 1991-08-29 | Sanyo Electric Co Ltd | White balance controller |
JPH03232391A (en) * | 1990-02-07 | 1991-10-16 | Sanyo Electric Co Ltd | White balance controller |
JPH03250992A (en) * | 1990-02-28 | 1991-11-08 | Sanyo Electric Co Ltd | White balance adjustment device |
CN101976540A (en) * | 2010-11-22 | 2011-02-16 | 天津三星电子显示器有限公司 | Method for automatically adjusting grey-scale consistency of display |
Also Published As
Publication number | Publication date |
---|---|
JP2618908B2 (en) | 1997-06-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |