GB701884A - Gamma control apparatus - Google Patents

Gamma control apparatus

Info

Publication number
GB701884A
GB701884A GB10805/52A GB1080552A GB701884A GB 701884 A GB701884 A GB 701884A GB 10805/52 A GB10805/52 A GB 10805/52A GB 1080552 A GB1080552 A GB 1080552A GB 701884 A GB701884 A GB 701884A
Authority
GB
United Kingdom
Prior art keywords
scanning
control
photo
contrast
film
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
GB10805/52A
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of GB701884A publication Critical patent/GB701884A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/30—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical otherwise than with constant velocity or otherwise than in pattern formed by unidirectional, straight, substantially horizontal or vertical lines
    • H04N3/34—Elemental scanning area oscillated rapidly in direction transverse to main scanning direction
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/20—Circuitry for controlling amplitude response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/11—Scanning of colour motion picture films, e.g. for telecine

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Projection-Type Copiers In General (AREA)
GB10805/52A 1951-05-01 1952-04-29 Gamma control apparatus Expired GB701884A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US304909XA 1951-05-01 1951-05-01

Publications (1)

Publication Number Publication Date
GB701884A true GB701884A (en) 1954-01-06

Family

ID=21854445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10805/52A Expired GB701884A (en) 1951-05-01 1952-04-29 Gamma control apparatus

Country Status (4)

Country Link
BE (1) BE511089A (es)
CH (1) CH304909A (es)
FR (1) FR1059081A (es)
GB (1) GB701884A (es)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2985064A (en) * 1957-03-15 1961-05-23 Rca Corp Composite photography
US2985065A (en) * 1957-03-15 1961-05-23 Rca Corp Composite photography
US3037422A (en) * 1957-03-15 1962-06-05 Rca Corp Composite photography
US3041932A (en) * 1957-09-24 1962-07-03 Hunter Penrose Ltd Photographic colour reproduction apparatus
US3270611A (en) * 1961-08-24 1966-09-06 Ibm Apparatus for monitoring relative contrast

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2911468A (en) * 1958-01-24 1959-11-03 Gen Precision Lab Inc Video resolution control
FR77955E (fr) * 1959-10-27 1962-05-18 Electronique & Physique Perfectionnements aux procédés de correction du gamma en télévision et appareillage à cet effet
GB1057253A (en) * 1962-11-09 1967-02-01 Emi Ltd Improvements relating to television camera arrangements
FR2967153B1 (fr) 2010-11-04 2014-10-03 Solvay Procede pour le traitement d'eaux usees provenant de la preparation d'un polymere halogene

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2985064A (en) * 1957-03-15 1961-05-23 Rca Corp Composite photography
US2985065A (en) * 1957-03-15 1961-05-23 Rca Corp Composite photography
US3037422A (en) * 1957-03-15 1962-06-05 Rca Corp Composite photography
US3041932A (en) * 1957-09-24 1962-07-03 Hunter Penrose Ltd Photographic colour reproduction apparatus
US3270611A (en) * 1961-08-24 1966-09-06 Ibm Apparatus for monitoring relative contrast

Also Published As

Publication number Publication date
FR1059081A (fr) 1954-03-22
CH304909A (de) 1955-01-31
BE511089A (es)

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