CH610418A5 - - Google Patents


Publication number
CH610418A5 CH1383176A CH1383176A CH610418A5 CH 610418 A5 CH610418 A5 CH 610418A5 CH 1383176 A CH1383176 A CH 1383176A CH 1383176 A CH1383176 A CH 1383176A CH 610418 A5 CH610418 A5 CH 610418A5
Application number
Hans-Georg Knop
Original Assignee
Hell Rudolf Dr Ing 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 Hell Rudolf Dr Ing Gmbh filed Critical Hell Rudolf Dr Ing Gmbh
Publication of CH610418A5 publication Critical patent/CH610418A5/xx



    • 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
CH1383176A 1975-11-08 1976-11-03 CH610418A5 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2550273 1975-11-08

Publications (1)

Publication Number Publication Date
CH610418A5 true CH610418A5 (ja) 1979-04-12



Family Applications (1)

Application Number Title Priority Date Filing Date
CH1383176A CH610418A5 (ja) 1975-11-08 1976-11-03

Country Status (6)

Country Link
US (1) US4092668A (ja)
JP (1) JPS5826020B2 (ja)
CH (1) CH610418A5 (ja)
FR (1) FR2331068A1 (ja)
GB (1) GB1518578A (ja)
IL (1) IL50863A (ja)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5579448A (en) * 1978-12-11 1980-06-14 Dainippon Screen Mfg Co Ltd Color separation simulation system
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
JPS5660438A (en) * 1979-10-23 1981-05-25 Dainippon Screen Mfg Co Ltd Layout recording method in image scanning recorder
US4554593A (en) * 1981-01-02 1985-11-19 International Business Machines Corporation Universal thresholder/discriminator
JPS6120042A (ja) * 1984-07-06 1986-01-28 Dainippon Screen Mfg Co Ltd 画像走査記録方法及び装置
US4839721A (en) * 1984-08-28 1989-06-13 Polaroid Corporation Method of and apparatus for transforming color image data on the basis of an isotropic and uniform colorimetric space
US4652906A (en) * 1985-03-12 1987-03-24 Racal Data Communications Inc. Method and apparatus for color decomposition of video signals
GB8526817D0 (en) * 1985-10-31 1985-12-04 Crosfield Electronics Ltd Image enhancement
US4789892A (en) * 1985-12-23 1988-12-06 Fuji Xerox Co., Ltd. Color adjusting device including matrix-masking circuitry
US5289270A (en) * 1986-10-28 1994-02-22 Canon Kabushiki Kaisha Image processing apparatus for performing density conversion
FR2671504B1 (fr) * 1991-01-11 1993-04-30 Pineau Eric Machine d'usinage par abrasif de pieces cylindriques.
US5677967A (en) * 1993-03-10 1997-10-14 R. R. Donnelley & Sons Company Method of and apparatus for converting between a color appearance space and a colorant space
JP3423532B2 (ja) * 1996-05-24 2003-07-07 キヤノン株式会社 画像読取装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2799722A (en) * 1954-04-26 1957-07-16 Adalia Ltd Reproduction with localized corrections
US3893166A (en) * 1972-01-05 1975-07-01 Crosfield Electronics Ltd Colour correcting image reproducing methods and apparatus
US3848856A (en) * 1973-10-01 1974-11-19 Hazeltine Corp Local correction apparatus for a color previewer

Also Published As

Publication number Publication date
IL50863A0 (en) 1977-01-31
JPS5260014A (en) 1977-05-18
FR2331068B1 (ja) 1980-08-29
JPS5826020B2 (ja) 1983-05-31
GB1518578A (en) 1978-07-19
US4092668A (en) 1978-05-30
FR2331068A1 (fr) 1977-06-03
IL50863A (en) 1979-05-31

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Legal Events

Date Code Title Description
PL Patent ceased