JPS6455996A - Image pickup device - Google Patents
Image pickup deviceInfo
- Publication number
- JPS6455996A JPS6455996A JP62211347A JP21134787A JPS6455996A JP S6455996 A JPS6455996 A JP S6455996A JP 62211347 A JP62211347 A JP 62211347A JP 21134787 A JP21134787 A JP 21134787A JP S6455996 A JPS6455996 A JP S6455996A
- Authority
- JP
- Japan
- Prior art keywords
- correction
- dominant
- outputs
- white balance
- axis
- 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
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE:To obtain a normal white balance correction by detecting the presence of a dominant color in an object to be image-pickup which is used in adjusting white balance, deciding the saturation of the detected color, and providing negative feedback operation for white balance correction in the axis-direction intersecting orthogonally with the color temperature axis of the dominant color. CONSTITUTION:When R is dominant in a screen, a comparator/amplifier 24 outputs a VH, but outputs a VL when Ye is dominant. In case of the VH, a correction signal forming part 25 outputs correction signals to amplification parts 16, 17 so that an output signal from an adding part 18 forms a straight line intersecting orthogonally with the straight line connecting the R and the origin as a correction axis. In case of the VL, the part 25 outputs correction signals to the parts 16, 17 so that an output signal from the part 18 forms the straight line connecting the point Ye and the origin as a correction axis. As a result, even when a dominant color exists, an excellent white balance correction can be obtained.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62211347A JP2591624B2 (en) | 1987-08-27 | 1987-08-27 | Imaging device |
US08/350,375 US5563656A (en) | 1987-08-27 | 1994-12-05 | Image sensing apparatus with white balance adjustment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62211347A JP2591624B2 (en) | 1987-08-27 | 1987-08-27 | Imaging device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6455996A true JPS6455996A (en) | 1989-03-02 |
JP2591624B2 JP2591624B2 (en) | 1997-03-19 |
Family
ID=16604464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62211347A Expired - Lifetime JP2591624B2 (en) | 1987-08-27 | 1987-08-27 | Imaging device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2591624B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02295295A (en) * | 1989-05-10 | 1990-12-06 | Hitachi Ltd | White balance device |
JPH0379190A (en) * | 1989-08-23 | 1991-04-04 | Canon Inc | White balance corrector |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61101188A (en) * | 1984-10-23 | 1986-05-20 | Matsushita Electric Ind Co Ltd | Color television camera |
-
1987
- 1987-08-27 JP JP62211347A patent/JP2591624B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61101188A (en) * | 1984-10-23 | 1986-05-20 | Matsushita Electric Ind Co Ltd | Color television camera |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02295295A (en) * | 1989-05-10 | 1990-12-06 | Hitachi Ltd | White balance device |
JPH0379190A (en) * | 1989-08-23 | 1991-04-04 | Canon Inc | White balance corrector |
Also Published As
Publication number | Publication date |
---|---|
JP2591624B2 (en) | 1997-03-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071219 Year of fee payment: 11 |