IMAGE READING APPARATUS, IMAGE PROCESSING METHOD AND COMPUTER-READABLE PROGRAM

PROBLEM TO BE SOLVED: To reduce the difference in color between apparatus and machine for color reproduction, and reduce an error in age deterioration. SOLUTION: This apparatus is provided with a scanner unit 1 for scanning a sheet for calibration to read image information; and a correcting unit 2 f...

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Bibliographic Details
Main Author ICHITANI SHUJI
Format Patent
LanguageEnglish
Published 04.10.2007
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:PROBLEM TO BE SOLVED: To reduce the difference in color between apparatus and machine for color reproduction, and reduce an error in age deterioration. SOLUTION: This apparatus is provided with a scanner unit 1 for scanning a sheet for calibration to read image information; and a correcting unit 2 for calibrating γ correction tables 24, 25, 26 on the basis of the image information of the sheet 10 for calibration read by the scanner unit 1, correcting the image information of the sheet 10 using the calibrated γ correction table, and calibrating a color correction table 27 on the basis of the image information corrected by the γ correction table. This configuration enables calibration of the γ correction tables 24, 25, 26 and the color correction table 27 while utilizing the image information acquired one-time scanning, and the number of times of scanning in the scanner unit 1 can be reduced. COPYRIGHT: (C)2008,JPO&INPIT
Bibliography:Application Number: JP20060081468