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:
Oct. 21, 2014
Filed:
Mar. 06, 2013
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Norman Haas, Mount Kisco, NY (US);
Ying Li, Mohegan Lake, NY (US);
Charles A. Otto, Lansing, MI (US);
Sharathchandra Pankanti, Darien, CT (US);
Hoang Trinh, Hawthorne, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 5/235 (2006.01); H04N 5/361 (2011.01);
U.S. Cl.
CPC ...
H04N 5/361 (2013.01);
Abstract
An apparatus, computer program product, and method for reducing persistent shadows within an image. The apparatus includes a camera configured to generate frames of the image. The apparatus also includes a computer processor. The computer processor calculates the average normalized brightness for each pixel in the image and adjusts the brightness of each pixel with the average normalized brightness.