FR2486261A1 - Procede et dispositif pour explorer un original a utiliser en lithographie, procede et dispositif pour etablir et ajuster une courbe de ton de separation des couleurs - Google Patents

Procede et dispositif pour explorer un original a utiliser en lithographie, procede et dispositif pour etablir et ajuster une courbe de ton de separation des couleurs Download PDF

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Publication number
FR2486261A1
FR2486261A1 FR8112957A FR8112957A FR2486261A1 FR 2486261 A1 FR2486261 A1 FR 2486261A1 FR 8112957 A FR8112957 A FR 8112957A FR 8112957 A FR8112957 A FR 8112957A FR 2486261 A1 FR2486261 A1 FR 2486261A1
Authority
FR
France
Prior art keywords
density
original
standard
density distribution
pattern
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.)
Granted
Application number
FR8112957A
Other languages
English (en)
French (fr)
Other versions
FR2486261B1 (enrdf_load_stackoverflow
Inventor
Hideki Ushio
Hisao Akiguchi
Shigeru Kassu
Renji Otake
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.)
DIC Corp
Original Assignee
Dainippon Ink and Chemicals Co 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 Dainippon Ink and Chemicals Co Ltd filed Critical Dainippon Ink and Chemicals Co Ltd
Publication of FR2486261A1 publication Critical patent/FR2486261A1/fr
Application granted granted Critical
Publication of FR2486261B1 publication Critical patent/FR2486261B1/fr
Granted 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
    • H04N1/6027—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)
FR8112957A 1980-07-02 1981-07-01 Procede et dispositif pour explorer un original a utiliser en lithographie, procede et dispositif pour etablir et ajuster une courbe de ton de separation des couleurs Granted FR2486261A1 (fr)

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
FR2486261A1 true FR2486261A1 (fr) 1982-01-08
FR2486261B1 FR2486261B1 (enrdf_load_stackoverflow) 1984-05-25

Family

ID=13961141

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8112957A Granted FR2486261A1 (fr) 1980-07-02 1981-07-01 Procede et dispositif pour explorer un original a utiliser en lithographie, procede et dispositif pour etablir et ajuster une courbe de ton de separation des couleurs

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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1921460B1 (de) * 1969-04-26 1970-04-23 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
DE2642647A1 (de) * 1975-09-22 1977-03-24 Toppan Printing Co Ltd Dichtemessvorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1921460B1 (de) * 1969-04-26 1970-04-23 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
DE2642647A1 (de) * 1975-09-22 1977-03-24 Toppan Printing Co Ltd Dichtemessvorrichtung

Also Published As

Publication number Publication date
IT8122709A0 (it) 1981-07-02
IT1137684B (it) 1986-09-10
GB2080655B (en) 1984-03-14
JPS5714840A (en) 1982-01-26
GB2080655A (en) 1982-02-03
FR2486261B1 (enrdf_load_stackoverflow) 1984-05-25
DE3126165A1 (de) 1982-03-04

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ST Notification of lapse