JPS57112191A - White balance detector - Google Patents

White balance detector

Info

Publication number
JPS57112191A
JPS57112191A JP55186554A JP18655480A JPS57112191A JP S57112191 A JPS57112191 A JP S57112191A JP 55186554 A JP55186554 A JP 55186554A JP 18655480 A JP18655480 A JP 18655480A JP S57112191 A JPS57112191 A JP S57112191A
Authority
JP
Japan
Prior art keywords
signal
level
white balance
color difference
deltaey1
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
JP55186554A
Other languages
Japanese (ja)
Inventor
Joichi Sato
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP55186554A priority Critical patent/JPS57112191A/en
Publication of JPS57112191A publication Critical patent/JPS57112191A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE:To detect the white balance state simply and surely, by using a signal level of each input color difference signal to an encoder forming a color synthesis video signal suitable for each standard system. CONSTITUTION:A signal level of the 1st level adjusting signal DELTAEY1 added to a red primary color difference signal ER-EY is variably adjusted over + or -DELTAEY1 with the 1st level adjuster 7A of a white balance adjusting circuit 3A. Further the signal level of the 2nd level adjusting signal DELTAEY1 subtracting from a blue primary color difference signal EB-EY is variably adjusted over + or -DELTAEY2 with the 2nd level adjuster 7B. When the white balance adjustment is made so that each color difference axis is orthogonal through the original point, a detection signal with changing characteristics in V shape according to a signal level of a level adjusting signal DELTAEY is outputted from a signal output terminal 35c of a white balance detector 10A.
JP55186554A 1980-12-29 1980-12-29 White balance detector Pending JPS57112191A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55186554A JPS57112191A (en) 1980-12-29 1980-12-29 White balance detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55186554A JPS57112191A (en) 1980-12-29 1980-12-29 White balance detector

Publications (1)

Publication Number Publication Date
JPS57112191A true JPS57112191A (en) 1982-07-13

Family

ID=16190543

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55186554A Pending JPS57112191A (en) 1980-12-29 1980-12-29 White balance detector

Country Status (1)

Country Link
JP (1) JPS57112191A (en)

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