US Patent 7257269 Digital polarization filter

Patent 7257269 was granted and assigned to Nik Software, Inc. on August, 2007 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Nik Software, Inc.

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

72572690

Date of Patent

August 14, 2007

Patent Application Number

102504380

Date Filed

June 27, 2003

Patent Primary Examiner

‌

Kanjibhai Patel

Patent abstract

A method for simulating in a digital image the effect of a physical polarization filter is described, the digital image having a plurality of pixels (50) with color, by darkening (54) each of the plurality of pixels (52) having a cool color and lightening (56) each of the plurality of pixels having a warm color. Optional adjustment algorithms are disclosed, including a contrast adjustment (62), saturation adjustment (64) and intensity adjustment.