公开(公告)号：US20180013922A1

公开(公告)日：2018-01-11

申请号：US15543784

申请日：2016-01-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-seung LEE ,  Ji-young YI

IPC: H04N1/40 ,  H04N1/405 ,  H04N1/52 ,  G06T5/20

Abstract: A frequency adaptive descreening method includes obtaining a scan image of an original document, dividing a region of the scan image by analyzing frequency characteristics of the obtained scan image, estimating a resolution with respect to each of regions resulting from dividing the region according to the analyzed frequency characteristics, and adaptively performing filtering on the regions resulting from dividing the region by using the estimated resolution.