JPS6445644A - Undercolor signal correcting circuit - Google Patents

Undercolor signal correcting circuit

Info

Publication number
JPS6445644A
JPS6445644A JP62203668A JP20366887A JPS6445644A JP S6445644 A JPS6445644 A JP S6445644A JP 62203668 A JP62203668 A JP 62203668A JP 20366887 A JP20366887 A JP 20366887A JP S6445644 A JPS6445644 A JP S6445644A
Authority
JP
Japan
Prior art keywords
undercolor
color
correcting
signal
signals
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.)
Pending
Application number
JP62203668A
Other languages
Japanese (ja)
Inventor
Teruyoshi Hashizume
Shigeaki Tada
Hiroshi Nishiyama
Koji Kuriyama
Sakuma Hatakeno
Ichiro Anato
Hiromitsu Kurokawa
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP62203668A priority Critical patent/JPS6445644A/en
Publication of JPS6445644A publication Critical patent/JPS6445644A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/21—Ink jet for multi-colour printing
    • B41J2/2107—Ink jet for multi-colour printing characterised by the ink properties

Landscapes

  • Ink Jet (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Color, Gradation (AREA)
  • Color Image Communication Systems (AREA)

Abstract

PURPOSE:To widely set a color reproducing range by level weighting color at each signal of Ye, Mg, Cy an undercolor discriminated by undercolor discriminating means, and adding the undercolor produced by undercolor correcting means and color signal produced by undercolor removing means by adding means. CONSTITUTION:3 primary color signals of R, G, B are converted by a converter 1 to color signals of Ye, Mg, Cy for a printer, and primary color (k) (common parts of levels of Ye, Mg, Cy) (achromatic parts) is discriminated by undercolor discriminators 2. The undercolor (k) is supplied to a undercolor correcting circuits 3, Ye, mg, Cy are weighted respectively by undercolor gray balance input/output characteristics to be corrected for gray balance, and supplied to a undercolor-color signal adder 4. On the other hand, the undercolor (k) is removed from the color signals by an undercolor removing circuit 5 to color signals only in Mg, Ye without Cy component, and then color-corrected for Mg, Ye by a color signal correcting circuit 6, and added by the undercolor-color signal adder 4.
JP62203668A 1987-08-17 1987-08-17 Undercolor signal correcting circuit Pending JPS6445644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62203668A JPS6445644A (en) 1987-08-17 1987-08-17 Undercolor signal correcting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62203668A JPS6445644A (en) 1987-08-17 1987-08-17 Undercolor signal correcting circuit

Publications (1)

Publication Number Publication Date
JPS6445644A true JPS6445644A (en) 1989-02-20

Family

ID=16477875

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62203668A Pending JPS6445644A (en) 1987-08-17 1987-08-17 Undercolor signal correcting circuit

Country Status (1)

Country Link
JP (1) JPS6445644A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007089152A (en) * 2005-09-23 2007-04-05 Oce Technol Bv Transfer function generating method, transfer function generating apparatus, and computer program

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007089152A (en) * 2005-09-23 2007-04-05 Oce Technol Bv Transfer function generating method, transfer function generating apparatus, and computer program

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