Title:
IMAGE READING DEVICE, IMAGE FORMING DEVICE, AND IMAGE READING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/017127
Kind Code:
A1
Abstract:
This image reading device (1) includes: a plurality of light sources (52) which respectively include a first source light source which emits light having a first spectrum and a second source light source which emits light having a second spectrum, and emit white light; an image reading unit (50) which generates image data (ID) according to reflection light from a manuscript (P); and a correction value determination unit which calculates a total correction value (α3) for calibrating the amount of the light having the first spectrum by using the ratio of a reflection light amount of the light having the first spectrum from a calibration manuscript prepared in advance so as to calibrate the light having the second spectrum and a calibration reference value set as a reference of the reflection light amount of the light having the first spectrum. The correction value determination unit determines a partial correction value with respect to one light source (52) among the plurality of light sources (52), and calculates the total correction value by using the partial correction value and correction value relationship information that indicates a relationship between the partial correction value and the total correction value.
Inventors:
KAWASAKI KENICHIRO (JP)
Application Number:
PCT/JP2018/022987
Publication Date:
January 24, 2019
Filing Date:
June 15, 2018
Export Citation:
Assignee:
KYOCERA DOCUMENT SOLUTIONS INC (JP)
International Classes:
H04N1/48; B41J29/393; G06T1/00; H04N1/04
Foreign References:
| JP2017046249A | 2017-03-02 | |||
| JP2010178213A | 2010-08-12 | |||
| JP2016146375A | 2016-08-12 | |||
| JP2014053882A | 2014-03-20 | |||
| JP2009118142A | 2009-05-28 |
Attorney, Agent or Firm:
MAEI Hiroyuki (JP)
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