Color detecting apparatus for inspecting a color of a printed ma

Details Color detecting apparatus for inspecting a color of a printed ma Color detecting apparatus for inspecting a color of a printed ma

1996-10-30

1999-06-15

Au, Amelia

Image analysis

Color image processing

G06K 900

Patent

active

059129875

ABSTRACT:
A color detecting apparatus comprises a mechanism for decomposing light from an inspection target object into a plurality of kinds of wavelength components and for inputting the wavelength components as spectrum data, a memory for storing the spectrum data, a mechanism for calculating out a physical characteristic amount of the spectrum data, a memory for storing reference data to be used as reference for the characteristic amount, and a mechanism for comparing the characteristic amount with the reference data, thereby to determine whether or not a color of the inspection target object is a reference color.

REFERENCES:
patent: 4199748 (1980-04-01), Bacus
patent: 4493105 (1985-01-01), Beall et al.
patent: 4654794 (1987-03-01), O'Brien
patent: 4948256 (1990-08-01), Lin et al.
patent: 5329595 (1994-07-01), Davies
Frank Goodenough, "Fiber Cable, Diffraction Grating, Photodiodes, and Processor Measure Color", 2328 Electronic Design International 38, Dec. 13, 1990, No. 23, pp. 32 and 34.

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