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.:

US 9307162 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 05, 2016

Filed:

May. 21, 2014
Applicant:

Himax Imaging Limited, Tainan, TW;

Inventor:

Yuan-Chih Peng, Tainan, TW;

Assignee:

HIMAX IMAGING LIMITED, Tainan, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/235 (2006.01); H04N 5/355 (2011.01); H04N 5/353 (2011.01); G06K 9/46 (2006.01);
U.S. Cl.
CPC ...
H04N 5/2355 (2013.01); G06K 9/46 (2013.01); G06K 9/4642 (2013.01); H04N 5/235 (2013.01); H04N 5/2351 (2013.01); H04N 5/353 (2013.01); H04N 5/35536 (2013.01);
Abstract

An embodiment of a local enhancement apparatus is provided, in which a block divider divides an image into a plurality of blocks, and a first enhancement unit performs a brightness-preserved enhancement on each block of the plurality of blocks to generate a brightness-preserved block. A second enhancement unit performs a brightness-adjusted enhancement on the each block to generate a brightness-adjusted block. A scene dynamic range estimator generates a dynamic range of the image according to characteristics of the image. A blender blends the brightness-preserved blocks and the brightness-adjusted blocks to generate an enhanced image based on the dynamic range.


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