IT1137684B - Procedimento e apparecchiatura per la classificazione di un originale da riprodurre litograficamente e la regolazione della curva della tonalita' di separazione del colore - Google Patents

Procedimento e apparecchiatura per la classificazione di un originale da riprodurre litograficamente e la regolazione della curva della tonalita' di separazione del colore

Info

Publication number
IT1137684B
IT1137684B IT22709/81A IT2270981A IT1137684B IT 1137684 B IT1137684 B IT 1137684B IT 22709/81 A IT22709/81 A IT 22709/81A IT 2270981 A IT2270981 A IT 2270981A IT 1137684 B IT1137684 B IT 1137684B
Authority
IT
Italy
Prior art keywords
lithographically
reproduced
classification
curve
original
Prior art date
Application number
IT22709/81A
Other languages
English (en)
Italian (it)
Other versions
IT8122709A0 (it
Inventor
Hideki Ushio
Hisao Akiguchi
Shigeru Kassu
Renji Otake
Original Assignee
Dainippon Ink & Chemicals
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 Dainippon Ink & Chemicals filed Critical Dainippon Ink & Chemicals
Publication of IT8122709A0 publication Critical patent/IT8122709A0/it
Application granted granted Critical
Publication of IT1137684B publication Critical patent/IT1137684B/it

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
    • H04N1/6027—Correction or control of colour gradation or colour contrast
    • 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
    • H04N1/40—Picture signal circuits
    • H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
    • 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)
  • Facsimile Image Signal Circuits (AREA)
  • Spectrometry And Color Measurement (AREA)
IT22709/81A 1980-07-02 1981-07-02 Procedimento e apparecchiatura per la classificazione di un originale da riprodurre litograficamente e la regolazione della curva della tonalita' di separazione del colore IT1137684B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8908980A JPS5714840A (en) 1980-07-02 1980-07-02 Setting up method for automatic color separating machine

Publications (2)

Publication Number Publication Date
IT8122709A0 IT8122709A0 (it) 1981-07-02
IT1137684B true IT1137684B (it) 1986-09-10

Family

ID=13961141

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22709/81A IT1137684B (it) 1980-07-02 1981-07-02 Procedimento e apparecchiatura per la classificazione di un originale da riprodurre litograficamente e la regolazione della curva della tonalita' di separazione del colore

Country Status (5)

Country Link
JP (1) JPS5714840A (enrdf_load_stackoverflow)
DE (1) DE3126165A1 (enrdf_load_stackoverflow)
FR (1) FR2486261A1 (enrdf_load_stackoverflow)
GB (1) GB2080655B (enrdf_load_stackoverflow)
IT (1) IT1137684B (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3435538A1 (de) * 1984-09-27 1986-04-03 Robert 6000 Frankfurt Hanus Verfahren zur reproduktion von originalvorlagen
EP0352491B1 (en) * 1988-06-30 1996-08-14 Dainippon Screen Mfg. Co., Ltd. Method of generating gradation correction curve for correcting gradation character of image
JPH0646255A (ja) * 1992-07-23 1994-02-18 Fuji Xerox Co Ltd 画像処理装置
JP3050099B2 (ja) * 1995-09-01 2000-06-05 株式会社村田製作所 誘電体フィルタおよびアンテナデュプレクサ
DE19751464C2 (de) * 1997-11-20 1999-08-26 Agfa Gevaert Ag Vorrichtung und Verfahren zum Erzeugen von Empfindlichkeitswerten

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1921460C2 (de) * 1969-04-26 1970-12-23 Scheuter Dipl Ing Karl R Einrichtung zur Messung des Informationsgehaltes eines Bildes sowie der Druckguete einer Reproduktion
US3893166A (en) * 1972-01-05 1975-07-01 Crosfield Electronics Ltd Colour correcting image reproducing methods and apparatus
GB1566263A (en) * 1975-09-22 1980-04-30 Toppan Printing Co Ltd Measuring optical characteristic

Also Published As

Publication number Publication date
IT8122709A0 (it) 1981-07-02
GB2080655B (en) 1984-03-14
JPS5714840A (en) 1982-01-26
GB2080655A (en) 1982-02-03
FR2486261B1 (enrdf_load_stackoverflow) 1984-05-25
FR2486261A1 (fr) 1982-01-08
DE3126165A1 (de) 1982-03-04

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