JPS6455996A - Image pickup device - Google Patents

Image pickup device

Info

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
Application number
JP62211347A
Other languages
Japanese (ja)
Other versions
JP2591624B2 (en
Inventor
Kenji Hisama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP62211347A priority Critical patent/JP2591624B2/en
Publication of JPS6455996A publication Critical patent/JPS6455996A/en
Priority to US08/350,375 priority patent/US5563656A/en
Application granted granted Critical
Publication of JP2591624B2 publication Critical patent/JP2591624B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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.
JP62211347A 1987-08-27 1987-08-27 Imaging device Expired - Lifetime JP2591624B2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61101188A (en) * 1984-10-23 1986-05-20 Matsushita Electric Ind Co Ltd color television camera

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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