GB1547425A - Video signal circuits for gamma-correction - Google Patents

Video signal circuits for gamma-correction

Info

Publication number
GB1547425A
GB1547425A GB14559/76A GB1455976A GB1547425A GB 1547425 A GB1547425 A GB 1547425A GB 14559/76 A GB14559/76 A GB 14559/76A GB 1455976 A GB1455976 A GB 1455976A GB 1547425 A GB1547425 A GB 1547425A
Authority
GB
United Kingdom
Prior art keywords
gamma
correction
video signal
signal circuits
circuits
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.)
Expired
Application number
GB14559/76A
Other languages
English (en)
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.)
Siemens Corp
Original Assignee
Siemens 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
Priority claimed from DE19752515479 external-priority patent/DE2515479C3/de
Application filed by Siemens Corp filed Critical Siemens Corp
Publication of GB1547425A publication Critical patent/GB1547425A/en
Expired 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
    • H04N23/82—Camera processing pipelines; Components thereof for controlling camera response irrespective of the scene brightness, e.g. gamma correction
    • H04N23/83—Camera processing pipelines; Components thereof for controlling camera response irrespective of the scene brightness, e.g. gamma correction specially adapted for colour signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Picture Signal Circuits (AREA)
GB14559/76A 1975-04-09 1976-04-09 Video signal circuits for gamma-correction Expired GB1547425A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752515479 DE2515479C3 (de) 1975-04-09 Verfahren zur T-Korrektur von Videosignalen

Publications (1)

Publication Number Publication Date
GB1547425A true GB1547425A (en) 1979-06-20

Family

ID=5943405

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14559/76A Expired GB1547425A (en) 1975-04-09 1976-04-09 Video signal circuits for gamma-correction

Country Status (6)

Country Link
US (1) US4086615A (enExample)
JP (1) JPS51123521A (enExample)
AT (1) AT348044B (enExample)
FR (1) FR2307420A1 (enExample)
GB (1) GB1547425A (enExample)
IT (1) IT1058880B (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56125177A (en) * 1980-01-24 1981-10-01 Hitachi Denshi Ltd Contrast adjusting system for color television camera
JPS60242784A (ja) * 1984-07-30 1985-12-02 Hitachi Ltd カラ−テレビジヨン受信機
JPH07105958B2 (ja) * 1985-03-18 1995-11-13 株式会社日立製作所 ビデオカメラの信号処理回路
US5121261A (en) * 1988-11-14 1992-06-09 Nikon Corporation Digital video signal processing apparatus
JP2748678B2 (ja) * 1990-10-09 1998-05-13 松下電器産業株式会社 階調補正方法および階調補正装置
JP2699711B2 (ja) * 1991-09-17 1998-01-19 松下電器産業株式会社 階調補正方法および装置
JPH07143516A (ja) * 1993-11-16 1995-06-02 Ikegami Tsushinki Co Ltd 映像信号圧縮装置
CN100484252C (zh) * 2001-12-29 2009-04-29 三星电子株式会社 控制图像亮度的装置和方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3272916A (en) * 1962-05-16 1966-09-13 Emi Ltd Color television systems utilizing a true luminance signal
US3604841A (en) * 1969-05-01 1971-09-14 Columbia Broadcasting Syst Inc Correction apparatus for encoded color television signals
JPS5136134B2 (enExample) * 1971-11-27 1976-10-06

Also Published As

Publication number Publication date
DE2515479B2 (de) 1977-04-28
JPS51123521A (en) 1976-10-28
IT1058880B (it) 1982-05-10
AT348044B (de) 1979-01-25
DE2515479A1 (de) 1976-10-14
ATA143676A (de) 1978-06-15
US4086615A (en) 1978-04-25
FR2307420B1 (enExample) 1981-06-12
FR2307420A1 (fr) 1976-11-05

Similar Documents

Publication Publication Date Title
GB1547483A (en) Video signal processing circuits
JPS522214A (en) Circuit for processing auxiliary signal for television receiver
JPS5235921A (en) Video reproducer
GB1550856A (en) Video signal reproducing apparatus
GB2065415B (en) Video signal dc clamp circuits
GB1539289A (en) Colour image signal processing circuits
JPS55118275A (en) Clamping circuit for video signal
GB1550936A (en) Signal processing circuits
GB1547425A (en) Video signal circuits for gamma-correction
JPS51128556A (en) Signal equalizing circuit
SE414570B (sv) Fergreglerkrets for tv-mottagare
GB1543254A (en) Processing apparatus for colour video signals
AU504365B2 (en) Blanking circuit fora video signal
JPS51144122A (en) System for processing television video signal
IL50625A0 (en) Reference signal circuit
GB1553273A (en) Receiver circuits
GB1552590A (en) Video signal processing circuits
GB2058515B (en) Video signal processing circuits
GB2065398B (en) Chrominance signal processing circuits
GB1549669A (en) Television camera circuits
JPS57103484A (en) Color television signal reproducer
JPS5219917A (en) Electronic switch for television
PH16486A (en) System for reproducing video signal
GB1538692A (en) Video signal processing circuit
GB2025181B (en) Video signal transalting circuit

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee