Patent ID: 9661183
Date: 2017-05-23
CPC Classifications: H04N

Claim:
1. An image correction method comprising: a scanning step of performing scanning per line so as to obtain a scan image; a scratch extraction region setting step of setting a scratch extraction region in a region in which a texture does not exist on the scan image obtained by the scanning step; a scratch discriminating step of discriminating if there is a scratch in the scratch extraction region set by the scratch extraction region setting step and, if there is a scratch, then providing a scratch position information; a scratch detecting step of detecting a scratch region from a scan image scanned per line using the scratch position information provided by the scratch discriminating step; a restoration processing step of performing a restoration of the corresponding scratch region by interpolation if the width of the scratch region detected by the scratch detecting unit is less than a predetermined value, or not performing the restoration of the corresponding scratch region by interpolation if the width thereof is not less than the predetermined value; and a printing step of printing a image processed in the restoration processing step on a paper sheet.