GB2016238B - Facsimile reproduction of coloured pictures - Google Patents

Facsimile reproduction of coloured pictures

Info

Publication number: GB2016238B
Authority: GB; United Kingdom
Prior art keywords: facsimile reproduction; coloured pictures; coloured; pictures; facsimile
Prior art date: 1978-03-09
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

GB7908486A

Other languages

English (en)

Other versions

GB2016238A (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.)

1978-03-09

Filing date

1979-03-09

Publication date

1982-07-14

1979-03-09 Application filed by Dr Ing Rudolf Hell GmbH filed Critical Dr Ing Rudolf Hell GmbH

1979-09-19 Publication of GB2016238A publication Critical patent/GB2016238A/en

1982-07-14 Application granted granted Critical

1982-07-14 Publication of GB2016238B publication Critical patent/GB2016238B/en

Status 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
- H04N1/6016—Conversion to subtractive colour signals
- H04N1/6022—Generating a fourth subtractive colour signal, e.g. under colour removal, black masking
- H04N1/6025—Generating a fourth subtractive colour signal, e.g. under colour removal, black masking using look-up tables

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Facsimile Image Signal Circuits (AREA)
Color Image Communication Systems (AREA)
Facsimile Scanning Arrangements (AREA)

GB7908486A 1978-03-09 1979-03-09 Facsimile reproduction of coloured pictures Expired GB2016238B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2810225A DE2810225C2 (de)	1978-03-09	1978-03-09	Gewinnung und Verwertung von Farbkorrekturdaten für die Farbbildaufzeichnung

Publications (2)

Publication Number	Publication Date
GB2016238A GB2016238A (en)	1979-09-19
GB2016238B true GB2016238B (en)	1982-07-14

Family

ID=6033985

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB7908486A Expired GB2016238B (en)	1978-03-09	1979-03-09	Facsimile reproduction of coloured pictures

Country Status (7)

Country	Link
JP (1)	JPS54127701A (nl)
CH (1)	CH640956A5 (nl)
DE (1)	DE2810225C2 (nl)
FR (1)	FR2419534B1 (nl)
GB (1)	GB2016238B (nl)
IL (1)	IL56771A (nl)
NL (1)	NL183060C (nl)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5694228A (en) *	1979-12-28	1981-07-30	Dainippon Screen Mfg Co Ltd	Color separation simulation device
DE3109190C2 (de) *	1981-03-11	1985-07-11	Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel	Verfahren zur Reproduktion farbiger Vorlagen im Vierfarbendruck unter Farbrücknahme
DE3220298A1 (de) *	1981-06-01	1982-12-16	Canon K.K., Tokyo	Farbbild-lesegeraet
US4533928A (en) *	1982-04-30	1985-08-06	Canon Kabushiki Kaisha	Color image processing apparatus
JPS5952968A (ja) *	1982-09-20	1984-03-27	Sony Corp	カラ−書画装置
DE3408336A1 (de) *	1983-03-08	1984-09-13	Canon K.K., Tokio/Tokyo	Bildreproduktionssystem
US5191361A (en) *	1983-03-08	1993-03-02	Canon Kabushiki Kaisha	Image reproducing system
JPS59206839A (ja) *	1983-05-10	1984-11-22	Toppan Printing Co Ltd	網点面積率入力装置
GB8531316D0 (en)	1985-12-19	1986-01-29	Crosfield Electronics Ltd	Image reproduction
DE3629195A1 (de) *	1986-01-14	1987-07-23	Canon Kk	Farbbildverarbeitungsgeraet
US6301025B1 (en) *	1994-06-24	2001-10-09	Mgi Software Corporation	Method for performing a color space transformation

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1597771C3 (de) *	1967-07-22	1978-09-07	Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel	Verfahren zur Herstellung von korrigierten Farbauszugssignalen und Farbauszügen
US3612753A (en) *	1969-04-23	1971-10-12	Ventures Res & Dev	Self-adaptive system for the reproduction of color
GB1369702A (en) *	1972-01-05	1974-10-09	Crosfield Electronics Ltd	Image reproducing methods and apparatus
US3893166A (en) *	1972-01-05	1975-07-01	Crosfield Electronics Ltd	Colour correcting image reproducing methods and apparatus
JPS5224701A (en) *	1975-08-20	1977-02-24	Dainippon Screen Mfg	Method of correcting color of image signal
DE2621008B2 (de) *	1976-05-12	1978-10-26	Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel	Verfahren zur Gewinnung und Verwertung von Farbkorrekturdaten für die Farbbildaufzeichnung

1978
- 1978-03-09 DE DE2810225A patent/DE2810225C2/de not_active Expired
1979
- 1979-02-02 CH CH101779A patent/CH640956A5/de not_active IP Right Cessation
- 1979-02-26 FR FR7904890A patent/FR2419534B1/fr not_active Expired
- 1979-03-01 IL IL56771A patent/IL56771A/xx unknown
- 1979-03-06 JP JP2518379A patent/JPS54127701A/ja active Pending
- 1979-03-09 GB GB7908486A patent/GB2016238B/en not_active Expired
- 1979-03-09 NL NLAANVRAGE7901915,A patent/NL183060C/nl not_active IP Right Cessation

Also Published As

Publication number	Publication date
NL183060B (nl)	1988-02-01
FR2419534B1 (fr)	1987-02-20
GB2016238A (en)	1979-09-19
IL56771A (en)	1982-12-31
CH640956A5 (de)	1984-01-31
NL183060C (nl)	1988-07-01
IL56771A0 (en)	1979-05-31
NL7901915A (nl)	1979-09-11
DE2810225C2 (de)	1982-04-22
DE2810225A1 (de)	1979-09-13
FR2419534A1 (fr)	1979-10-05
JPS54127701A (en)	1979-10-03

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Legal Events

Date	Code	Title	Description
1989-11-08	PCNP	Patent ceased through non-payment of renewal fee