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:
Dec. 27, 2016

Filed:

Jan. 30, 2014
Applicant:

Foveon, Inc., Santa Clara, CA (US);

Inventors:

Rastislav Lukac, Santa Clara, CA (US);

Ken Doyle, Santa Clara, CA (US);

Assignee:

Foveon, Inc., Santa Clara, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06T 5/00 (2006.01); G06K 9/40 (2006.01); H04N 9/64 (2006.01); H04N 9/68 (2006.01);
U.S. Cl.
CPC ...
G06T 5/008 (2013.01); G06K 9/40 (2013.01); G06T 5/001 (2013.01); H04N 9/646 (2013.01); H04N 9/68 (2013.01); G06T 2207/10024 (2013.01); G06T 2207/20172 (2013.01);
Abstract

A method for performing highlight restoration on a digital image includes comparing the pixels in the image with a saturation level value to identify saturated pixels. A saturation map of saturated pixels is generated. Each selected saturated pixel is identified as a restorable pixel only if at least one color channel of the pixel is unsaturated. For each restorable pixel, a group of the closest unsaturated pixels above, below, to the left, and to the right of the select saturated pixel is identified. A replacement pixel value is generated for each saturated color channel of the restorable pixel, using a combination of the pixel values of the unsaturated color channels of the restorable pixel and the pixel values of the corresponding color channels of the nearby unsaturated pixels.


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