The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 01, 2020
Filed:
Jul. 05, 2017
Applicant:
Hanwha Techwin Co., Ltd., Changwon-si, KR;
Inventors:
Young Hyun Lee, Changwon-si, KR;
Yil Kwon Chang, Changwon-si, KR;
Assignee:
HANWHA TECHWIN CO., LTD., Seongnam-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/46 (2006.01); G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
G06K 9/4642 (2013.01); G06K 9/00771 (2013.01); G06K 9/4652 (2013.01);
Abstract
Provided is a method for detecting fog from an image, the method including: generating a histogram based on a luminance signal of the image; calculating a histogram width from the histogram; calculating a color contrast value based on color signals of the image; and detecting a fog level of the image based on the histogram width and the color contrast value.