JPS6453121A - Color discriminating device - Google Patents

Color discriminating device

Info

Publication number
JPS6453121A
JPS6453121A JP62208218A JP20821887A JPS6453121A JP S6453121 A JPS6453121 A JP S6453121A JP 62208218 A JP62208218 A JP 62208218A JP 20821887 A JP20821887 A JP 20821887A JP S6453121 A JPS6453121 A JP S6453121A
Authority
JP
Japan
Prior art keywords
filter
image
register mark
filters
transmitted
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
JP62208218A
Other languages
Japanese (ja)
Inventor
Hiroshi Nagashima
Tetsuo Iga
Kazuyuki Nakazato
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.)
Toyo Ink Mfg Co Ltd
Original Assignee
Toyo Ink Mfg 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 Toyo Ink Mfg Co Ltd filed Critical Toyo Ink Mfg Co Ltd
Priority to JP62208218A priority Critical patent/JPS6453121A/en
Publication of JPS6453121A publication Critical patent/JPS6453121A/en
Pending legal-status Critical Current

Links

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

PURPOSE:To automate register mark discrimination for the registration of multicolor printing by rotating a disk where filters differing in wavelength range are fitted at a constant speed and reading an image through the filters. CONSTITUTION:The narrow-band filters 3 of about 480nm, 580nm, 650nm, and 800nm are fitted to the disk 4, which is rotated at the constant speed; and a register mark 2 is inputted as an image through an image reader 6. Consequently, a color transmitted through the 480nm filter 3 is discriminated as cyan, a color transmitted through the 580nm filter 3 as yellow, and a color transmitted through the 650nm filter 3 and not transmitted through the 580nm filter 3 as magenta to measure the shift quantity of the register mark 2 of a multicolor image printed in 2 or >=3 colors, and the calculation of a correction quantity accompanying it is facilitated.
JP62208218A 1987-08-24 1987-08-24 Color discriminating device Pending JPS6453121A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62208218A JPS6453121A (en) 1987-08-24 1987-08-24 Color discriminating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62208218A JPS6453121A (en) 1987-08-24 1987-08-24 Color discriminating device

Publications (1)

Publication Number Publication Date
JPS6453121A true JPS6453121A (en) 1989-03-01

Family

ID=16552628

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62208218A Pending JPS6453121A (en) 1987-08-24 1987-08-24 Color discriminating device

Country Status (1)

Country Link
JP (1) JPS6453121A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5548986A (en) * 1992-04-22 1996-08-27 Structural Metals, Inc. Method and apparatus for simultaneously forming at least four metal rounds
US7170648B2 (en) 2000-12-27 2007-01-30 Bobst, S.A. Device for scanning register marks into a polychrome printing machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS503388A (en) * 1973-05-11 1975-01-14
JPS57533A (en) * 1980-05-31 1982-01-05 Matsushita Electric Works Ltd Color difference meter
JPS5961724A (en) * 1982-09-30 1984-04-09 Matsushita Electric Works Ltd Color analyzer
JPS60170730A (en) * 1984-02-15 1985-09-04 Towa Densen Kk Normal and abnormal deciding method of color array of color-classified electric wire connected to connector
JPS61155927A (en) * 1984-12-28 1986-07-15 Toyo Alum Kk Apparatus for measuring hue of metallic paint film

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS503388A (en) * 1973-05-11 1975-01-14
JPS57533A (en) * 1980-05-31 1982-01-05 Matsushita Electric Works Ltd Color difference meter
JPS5961724A (en) * 1982-09-30 1984-04-09 Matsushita Electric Works Ltd Color analyzer
JPS60170730A (en) * 1984-02-15 1985-09-04 Towa Densen Kk Normal and abnormal deciding method of color array of color-classified electric wire connected to connector
JPS61155927A (en) * 1984-12-28 1986-07-15 Toyo Alum Kk Apparatus for measuring hue of metallic paint film

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5548986A (en) * 1992-04-22 1996-08-27 Structural Metals, Inc. Method and apparatus for simultaneously forming at least four metal rounds
US7170648B2 (en) 2000-12-27 2007-01-30 Bobst, S.A. Device for scanning register marks into a polychrome printing machine

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