JPS6423698A - Ttl white balance circuit - Google Patents

Ttl white balance circuit

Info

Publication number
JPS6423698A
JPS6423698A JP62179467A JP17946787A JPS6423698A JP S6423698 A JPS6423698 A JP S6423698A JP 62179467 A JP62179467 A JP 62179467A JP 17946787 A JP17946787 A JP 17946787A JP S6423698 A JPS6423698 A JP S6423698A
Authority
JP
Japan
Prior art keywords
high brightness
white balance
color difference
detecting
information
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.)
Pending
Application number
JP62179467A
Other languages
Japanese (ja)
Inventor
Masao Genda
Keiji Soeda
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62179467A priority Critical patent/JPS6423698A/en
Publication of JPS6423698A publication Critical patent/JPS6423698A/en
Pending legal-status Critical Current

Links

Landscapes

  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE:To set a white balance with high accuracy by providing a gate circuit for gating a white balance adjusting output with the high brightness part detecting output of an object. CONSTITUTION:High brightness object information is discriminated by comparing a luminance signal with a high brightness level voltage in a high brightness detecting circuit 11. The high brightness part in the object is detected. A part discriminated to be the high brightness, namely, the color difference signal information of the detecting part of the high brightness part is sampled in the gate circuit 12 so as not to use as the color difference information for setting the white balance. Thereby, the white balance is set by the color difference signal information except the high brightness part to prevent a color dislocation and set the white balance with high accuracy.
JP62179467A 1987-07-17 1987-07-17 Ttl white balance circuit Pending JPS6423698A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62179467A JPS6423698A (en) 1987-07-17 1987-07-17 Ttl white balance circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62179467A JPS6423698A (en) 1987-07-17 1987-07-17 Ttl white balance circuit

Publications (1)

Publication Number Publication Date
JPS6423698A true JPS6423698A (en) 1989-01-26

Family

ID=16066360

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62179467A Pending JPS6423698A (en) 1987-07-17 1987-07-17 Ttl white balance circuit

Country Status (1)

Country Link
JP (1) JPS6423698A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH031790A (en) * 1989-05-30 1991-01-08 Canon Inc Image pickup device
JPH031762A (en) * 1989-05-30 1991-01-08 Canon Inc Image pickup device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6235792A (en) * 1985-08-09 1987-02-16 Hitachi Ltd Adjustment system for white balance

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6235792A (en) * 1985-08-09 1987-02-16 Hitachi Ltd Adjustment system for white balance

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH031790A (en) * 1989-05-30 1991-01-08 Canon Inc Image pickup device
JPH031762A (en) * 1989-05-30 1991-01-08 Canon Inc Image pickup device

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