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:
Aug. 04, 2009
Filed:
Feb. 17, 2004
Applicant:
Ravinder Prakash, Concord, NC (US);
Inventor:
Ravinder Prakash, Concord, NC (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system and method for correcting defects in a black white image. An edge smoothing filter is disclosed that comprises: a system for selecting a block of pixels comprising one center pixel and eight exterior pixels; and an algorithm that examines the block of pixels, wherein the algorithm overwrites the value of the center pixel if: all three pixels along a first edge share a first value; and all three pixels along an opposing edge share a second value that is opposite of the first value; and the two exterior pixels residing between the first and second edge share a common value.