Title:
METHOD FOR CALIBRATING WAVELENGTH, PRINTING APPARATUS, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2011/155158
Kind Code:
A1
Abstract:
A method for accurately and easily calibrating the wavelength of light detected by spectral sensors for generating a color conversion LUT without using special sensors includes: acquiring a spectral reflectance 402 of a target slave to be corrected and a spectral reflectance 401 of a master serving as a reference; acquiring an intersection of the spectral reflectance 401 and wavelength difference detect lines DL in a wavelength difference search range 403 of the spectral reflectance 401; acquiring an intersection of the spectral reflectance 402 and wavelength difference detect lines DL in a wavelength difference search range 403 of the spectral reflectance 402; acquiring a wavelength detected with the spectral reflectance 401 from the intersection of the spectral reflectance 401 and the wavelength difference detect lines DL; acquiring a pixel position of the light receiving element of the spectral reflectance 402 from the intersection of the spectral reflectance 402 and the wavelength difference detect line DL; and updating the contents of a table indicating a correspondence relation between a pixel position of the slave and a detected wavelength based on the acquired pixel position and wavelength.
Inventors:
MUTO, Hiroyuki (C/O CANON KABUSHIKI KAISHA, 30-2 Shimomaruko 3-chome, Ohta-k, Tokyo 01, 14685, JP)
Application Number:
JP2011/003099
Publication Date:
December 15, 2011
Filing Date:
June 02, 2011
Export Citation:
Assignee:
CANON KABUSHIKI KAISHA (30-2, Shimomaruko 3-chome Ohta-k, Tokyo 01, 14685, JP)
MUTO, Hiroyuki (C/O CANON KABUSHIKI KAISHA, 30-2 Shimomaruko 3-chome, Ohta-k, Tokyo 01, 14685, JP)
MUTO, Hiroyuki (C/O CANON KABUSHIKI KAISHA, 30-2 Shimomaruko 3-chome, Ohta-k, Tokyo 01, 14685, JP)
International Classes:
G01J3/02
Attorney, Agent or Firm:
ABE, Takuma et al. (C/O CANON KABUSHIKI KAISHA, 30-2 Shimomaruko 3-chom, Ohta-ku Tokyo 01, 14685, JP)
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