公开(公告)号：US20170124685A1

公开(公告)日：2017-05-04

申请号：US15357785

申请日：2016-11-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HITOSHI YAMADA ,  TARO IMAGAWA

IPC: G06T5/00 ,  H04N5/225 ,  G06T7/174 ,  G06T5/40 ,  G06T7/13

CPC classification number: G06T5/002 ,  G06T5/003 ,  G06T5/40 ,  G06T5/50 ,  G06T7/13 ,  G06T7/174 ,  G06T2207/10016 ,  G06T2207/20216 ,  G06T2207/30232 ,  H04N5/21 ,  H04N5/225 ,  H04N5/232

Abstract: Image processing device includes a correction unit and a determination unit. The correction unit performs correction for suppressing image fluctuations on each of a plurality of input images using a correction parameter and outputs results of the correction as a plurality of corrected images. The determination unit (i) calculates a first distribution and a second distribution. The first distribution represents a frequency distribution of edge angles in a given input image of the plurality of input images. The second distribution represents a frequency distribution of edge angles in a given corrected image that is the given input image corrected by the correction unit and is output. The determination unit (ii) performs a first determination that determines presence or absence of fluctuations in the given input image using the first and the second distributions calculated, and (iii) performs updating of the correction parameter using results of the first determination.