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.

Date of Patent:
Sep. 06, 2016

Filed:

Jul. 23, 2015
Applicant:

Hewlett-packard Development Company, L.p., Houston, TX (US);

Inventor:

Jian Fan, San Jose, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/40 (2006.01); H04N 1/407 (2006.01); H04N 1/58 (2006.01); H04N 1/40 (2006.01);
U.S. Cl.
CPC ...
H04N 1/4072 (2013.01); H04N 1/40068 (2013.01); H04N 1/58 (2013.01); H04N 2201/0081 (2013.01);
Abstract

In one example, a method of automatically enhancing a digital image having a smooth-boundaried foreground object. The method processes the image via gradient-based background segmentation at a first scale to generate a first mask. The first mask has a first accuracy. The first mask is used to generate a first background of the image which includes at least a portion of the smooth-boundaried foreground object. The method further processes the first background via gradient-based background segmentation at a smaller second scale to generate a second mask. The second mask has a greater second accuracy. The second mask is used with the first mask to generate a second background of the image which substantially excludes the smooth-boundaried foreground object. The image can be enhanced using the second background so as to preserve the smooth-boundaried foreground object.


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