Shading correction apparatus and an image read apparatus using the shading correction apparatus

• Main Author: SUGIURA, TAKASHI
• Format: Patent
• Language: English; French; German
• Published: 07.05.2014
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

A shading correction apparatus can execute a first method of adding and averaging, in the sub-scanning direction, shading data obtained by reading a white reference plate in the main scanning direction and in the sub-scanning direction to obtain correction data to be used for shading correction and...