GB1594667A - Methods of correcting colours when producing printing surffaces - Google Patents

Methods of correcting colours when producing printing surffaces Download PDF

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Publication number
GB1594667A
GB1594667A GB22626/78A GB2262678A GB1594667A GB 1594667 A GB1594667 A GB 1594667A GB 22626/78 A GB22626/78 A GB 22626/78A GB 2262678 A GB2262678 A GB 2262678A GB 1594667 A GB1594667 A GB 1594667A
Authority
GB
United Kingdom
Prior art keywords
colour
correcting
correction
correction parameters
setting member
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
GB22626/78A
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.)
Dr Ing Rudolf Hell GmbH
Original Assignee
Dr Ing Rudolf Hell GmbH
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 Dr Ing Rudolf Hell GmbH filed Critical Dr Ing Rudolf Hell GmbH
Publication of GB1594667A publication Critical patent/GB1594667A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46Colour picture communication systems
    • H04N1/56Processing of colour picture signals
    • H04N1/60Colour correction or control
    • H04N1/62Retouching, i.e. modification of isolated colours only or in isolated picture areas only
    • H04N1/622Retouching, i.e. modification of isolated colours only or in isolated picture areas only with simulation on a subsidiary picture reproducer
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46Colour picture communication systems
    • H04N1/56Processing of colour picture signals
    • H04N1/60Colour correction or control
    • H04N1/6016Conversion to subtractive colour signals
    • H04N1/6019Conversion to subtractive colour signals using look-up tables

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Image Communication Systems (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
  • Processing Of Color Television Signals (AREA)
GB22626/78A 1977-06-08 1978-05-25 Methods of correcting colours when producing printing surffaces Expired GB1594667A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2725864A DE2725864C2 (de) 1977-06-08 1977-06-08 Farbkorrektureinheit für die Druckformherstellung

Publications (1)

Publication Number Publication Date
GB1594667A true GB1594667A (en) 1981-08-05

Family

ID=6011046

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22626/78A Expired GB1594667A (en) 1977-06-08 1978-05-25 Methods of correcting colours when producing printing surffaces

Country Status (7)

Country Link
US (1) US4204223A (https=)
JP (2) JPS546601A (https=)
CH (1) CH632602A5 (https=)
DE (1) DE2725864C2 (https=)
FR (1) FR2394114A1 (https=)
GB (1) GB1594667A (https=)
IL (1) IL54868A (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196812A (en) * 1986-08-20 1988-05-05 Canon Kk Recorded image distortion correction

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2725864C2 (de) * 1977-06-08 1982-07-01 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Farbkorrektureinheit für die Druckformherstellung
DE2853510C2 (de) * 1978-12-12 1982-06-09 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Einrichtung zur Herstellung von Farbauszügen insbesondere für den Textildruck
DE2920058C2 (de) * 1979-05-18 1983-09-29 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Verfahren und Schaltungsanordnung zur partiellen elektronischen Retusche bei der Farbbildreproduktion
JPS55157741A (en) * 1979-05-29 1980-12-08 Dainippon Screen Mfg Co Ltd Information making and recording apparatus for adjusting color scanner
JPS561039A (en) * 1979-06-18 1981-01-08 Fuji Photo Film Co Ltd Normalized circuit
JPS5694228A (en) * 1979-12-28 1981-07-30 Dainippon Screen Mfg Co Ltd Color separation simulation device
JPS56102853A (en) * 1980-01-21 1981-08-17 Dainippon Screen Mfg Co Ltd Metho for pretreating image signal of image copying apparatus
DE3003607C2 (de) * 1980-02-01 1984-01-05 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Schaltungsanordnung zur partiellen Nachkorrektur von Farberkennungsräumen bei der Farberkennung
JPS56128947A (en) * 1980-03-13 1981-10-08 Dainippon Screen Mfg Co Ltd Method of setting highlight and shadow point density value of original picture to picture scanning recorder
US4342047A (en) * 1980-04-30 1982-07-27 United Technologies Corporation Color calibration accuracy in a color raster scanner
JPH0423259B2 (https=) * 1980-09-10 1992-04-21 Dokutoru Ingu* Rudorufu Heru Gmbh
ATE10308T1 (de) * 1980-09-10 1984-11-15 Dr.-Ing. Rudolf Hell Gmbh Verfahren und schaltungsanordnung zur partiellen korrektur der zeichnung bei der farbbildreproduktion.
US4340905A (en) * 1980-09-12 1982-07-20 Balding George H Photographic printer and color film analyzer apparatus
JPS57133452A (en) * 1981-02-13 1982-08-18 Canon Inc Method and device for color correction of color picture
US4496968A (en) * 1981-07-14 1985-01-29 Crosfield Electronics Limited Reproduction of colored images
EP0070677B1 (en) * 1981-07-14 1991-01-09 Dai Nippon Printing Co., Ltd. Video printing apparatus
EP0089174B1 (en) * 1982-03-11 1987-06-24 Crosfield Electronics Limited A video retouching system
US4500919A (en) * 1982-05-04 1985-02-19 Massachusetts Institute Of Technology Color reproduction system
US4476487A (en) * 1982-05-04 1984-10-09 Dr. -Ing. Rudolf Hell Gmbh Method and circuit arrangement for partial electronic retouch in color image reproduction
JPS58220566A (ja) * 1982-06-16 1983-12-22 Matsushita Giken Kk 色修正用演算装置
DE3408336A1 (de) * 1983-03-08 1984-09-13 Canon K.K., Tokio/Tokyo Bildreproduktionssystem
JPS59163953A (ja) * 1983-03-08 1984-09-17 Canon Inc 画像処理装置
US5191361A (en) * 1983-03-08 1993-03-02 Canon Kabushiki Kaisha Image reproducing system
ATE28247T1 (de) * 1983-04-27 1987-07-15 Hell Rudolf Dr Ing Gmbh Verfahren und einrichtung zur herstellung von farbbildern.
JPS61278274A (ja) * 1985-06-04 1986-12-09 Toshiyuki Sakai 擬似フルカラ−画像の表現方式
US4789892A (en) * 1985-12-23 1988-12-06 Fuji Xerox Co., Ltd. Color adjusting device including matrix-masking circuitry
US4864391A (en) * 1986-05-09 1989-09-05 Canon Kabushiki Kaisha Image processing apparatus for color correcting an image which can monitor the result of the color correction
DE3833198C2 (de) * 1988-09-30 1998-01-15 Bron Elektronik Ag Farbtemperaturmeßgerät

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1053311B (de) * 1958-02-11 1959-03-19 Hell Rudolf Dr Ing Fa Verfahren und Vorrichtung zur elektronischen Farbkorrektur
US3742129A (en) * 1971-07-07 1973-06-26 Harris Intertype Corp Apparatus and method for generating halftones for image reproduction
US3893166A (en) * 1972-01-05 1975-07-01 Crosfield Electronics Ltd Colour correcting image reproducing methods and apparatus
JPS5117801A (en) * 1974-08-02 1976-02-13 Osaka Yamatoya Shokai Kk Dairekutosukuriiningusukyanaaniokeru tekiseiirobunkaihenshukanshihoshiki
FR2303432A1 (fr) * 1975-03-07 1976-10-01 Telediffusion Fse Perfectionnements aux dispositifs d'etalonnage sensitometrique et colorimetrique d'images photographiques ou cinematographiques en couleurs
JPS5212001A (en) * 1975-07-17 1977-01-29 Dainippon Screen Mfg Method of correcting color
DE2725864C2 (de) * 1977-06-08 1982-07-01 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Farbkorrektureinheit für die Druckformherstellung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196812A (en) * 1986-08-20 1988-05-05 Canon Kk Recorded image distortion correction
US4794413A (en) * 1986-08-20 1988-12-27 Canon Kabushiki Kaisha Image recording apparatus
GB2196812B (en) * 1986-08-20 1991-01-09 Canon Kk Image formimg apparatus

Also Published As

Publication number Publication date
IL54868A0 (en) 1978-08-31
JPS63184483A (ja) 1988-07-29
JPH0241020B2 (https=) 1990-09-14
DE2725864C2 (de) 1982-07-01
FR2394114A1 (fr) 1979-01-05
FR2394114B1 (https=) 1982-05-14
JPS546601A (en) 1979-01-18
CH632602A5 (de) 1982-10-15
US4204223A (en) 1980-05-20
IL54868A (en) 1982-07-30
DE2725864A1 (de) 1978-12-14

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Legal Events

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

Effective date: 19930525