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. 06, 2011
Filed:
Nov. 26, 2008
Min Kyu Park, Seoul, KR;
Hyun Hee Park, Seoul, KR;
Sung Dae Cho, Yongin-si, KR;
Moon Gi Kang, Seoul, KR;
Jong Seong Choi, Seoul, KR;
Young Seok Han, Seoul, KR;
Min Kyu Park, Seoul, KR;
Hyun Hee Park, Seoul, KR;
Sung Dae Cho, Yongin-si, KR;
Moon Gi Kang, Seoul, KR;
Jong Seong Choi, Seoul, KR;
Young Seok Han, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
A dynamic range enhancement method and apparatus for an imaging device expands a dynamic range of an input image without an associated increase in the amount of image calculations. The dynamic range enhancement method includes producing brightness information and color information from an input image; applying gamma correction and inverse gamma correction to the brightness information to produce a gamma corrected image and an inverse gamma corrected image; comparing variances of the gamma corrected image and the inverse gamma corrected image at identical spots; and expanding a dynamic range of the input image by selecting one of the variances at each spot. The dynamic range of an input image is expanded by applying a post imaging process without increasing calculation amount of the imaging device.