GB855895A - Improvements in or relating to colour printing - Google Patents

Improvements in or relating to colour printing

Info

Publication number
GB855895A
GB855895A GB7954/57A GB795457A GB855895A GB 855895 A GB855895 A GB 855895A GB 7954/57 A GB7954/57 A GB 7954/57A GB 795457 A GB795457 A GB 795457A GB 855895 A GB855895 A GB 855895A
Authority
GB
United Kingdom
Prior art keywords
colour
magenta
signal
negatives
circuit
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
GB7954/57A
Other languages
English (en)
Inventor
Gordon Stanley James Allen
David Harry Mawby
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.)
CROSFIELD J F Ltd
Original Assignee
CROSFIELD J F 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 CROSFIELD J F Ltd filed Critical CROSFIELD J F Ltd
Priority to GB7954/57A priority Critical patent/GB855895A/en
Priority to US718748A priority patent/US2987571A/en
Priority to DEC16429A priority patent/DE1135295B/de
Priority to FR1202287D priority patent/FR1202287A/fr
Publication of GB855895A publication Critical patent/GB855895A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Image Communication Systems (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
GB7954/57A 1957-03-11 1957-03-11 Improvements in or relating to colour printing Expired GB855895A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB7954/57A GB855895A (en) 1957-03-11 1957-03-11 Improvements in or relating to colour printing
US718748A US2987571A (en) 1957-03-11 1958-03-03 Color printing
DEC16429A DE1135295B (de) 1957-03-11 1958-03-06 Verfahren und Vorrichtung zur Reproduktion farbiger Originale
FR1202287D FR1202287A (fr) 1957-03-11 1958-03-11 Procédé et dispositif d'impression en couleurs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7954/57A GB855895A (en) 1957-03-11 1957-03-11 Improvements in or relating to colour printing

Publications (1)

Publication Number Publication Date
GB855895A true GB855895A (en) 1960-12-07

Family

ID=9842976

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7954/57A Expired GB855895A (en) 1957-03-11 1957-03-11 Improvements in or relating to colour printing

Country Status (4)

Country Link
US (1) US2987571A (fr)
DE (1) DE1135295B (fr)
FR (1) FR1202287A (fr)
GB (1) GB855895A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3115807A (en) * 1960-06-17 1963-12-31 Logetronics Inc Electronic masking
US3255305A (en) * 1963-08-05 1966-06-07 Philco Corp System for modifying selected colors in additive color reproducing signal processingsystem
GB1057370A (en) * 1963-11-08 1967-02-01 Kyte Derek John Improvements in or relating to colour printing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2721892A (en) * 1951-06-27 1955-10-25 Eastman Kodak Co Variable electrooptical color correction
US2710889A (en) * 1953-01-21 1955-06-14 Edward Stern & Company Inc Color reproduction
DE1072479B (fr) * 1953-08-25 1959-12-31
US2757571A (en) * 1953-09-15 1956-08-07 Hazeltine Research Inc Photographic color printer
DE1006261B (de) * 1955-12-08 1957-04-11 Deutsche Gesellschaft für Forschung im graphischen. Gewerbe E. V., München Anordnung zur Herstellung von gerasterten, tonwertberichtigten Bildern für Druckformen durch punktweise lichtelektrische Abtastung der Bildvorlage

Also Published As

Publication number Publication date
FR1202287A (fr) 1960-01-08
DE1135295B (de) 1962-08-23
US2987571A (en) 1961-06-06

Similar Documents

Publication Publication Date Title
US2757571A (en) Photographic color printer
US2434561A (en) Color facsimile
US2721892A (en) Variable electrooptical color correction
US4349835A (en) Color printing process simulator
US2710889A (en) Color reproduction
GB1120589A (en) Method of and apparatus for photographic reproduction with tone correction
GB738118A (en) Improvements relating to colour printing
US2567240A (en) Color facsimile system
US3123666A (en) Boost
GB1393921A (en) Photographic printer control apparatus and method
US3758707A (en) Method for obtaining electronic color correction signals
GB855895A (en) Improvements in or relating to colour printing
GB736864A (en) Improvements in black printers and electro-optical methods of making them
US3041932A (en) Photographic colour reproduction apparatus
GB1031248A (en) Colour printer
US2947805A (en) Four color reproducing method and apparatus
GB1328299A (en) Process for the manufacture of a screened photographic colour copy which simulates a multi-colour print
GB947391A (en) Improvements in apparatus for producing color printers
US2968214A (en) Modification of the light response from a coloured original
US3144510A (en) Apparatus for the compression of color images
US3110761A (en) Colour printer with colour correction
GB761416A (en) Colour-correction systems
GB1207123A (en) Colour reproduction
US2313542A (en) Electro-optical color reproduction circuit
US3026039A (en) Electronic apparatus for obtaining for reproduction purposes corrected color extractions from uncorrected color extractions