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:
Feb. 07, 2017
Filed:
Apr. 25, 2016
Digimarc Corporation, Beaverton, OR (US);
Alastair M. Reed, Lake Oswego, OR (US);
Kristyn R. Falkenstern, Portland, OR (US);
David Berfanger, Vancouver, WA (US);
Yang Bai, Beaverton, OR (US);
Digimarc Corporation, Beaverton, OR (US);
Abstract
The present disclosure relate generally to image signal processing, color science and signal encoding. One claim recites an apparatus including: an input for obtaining color image data; memory for storing a luminance contrast sensitivity function (CSF) and a chrominance contrast sensitivity function (CSF); means for degrading data representing color image data with the CSFand the CSFto predict visibility changes attributable to encoding plural-bit information in the obtained color image data, in which the CSFvaries depending on luminance values associated with local regions of the color image data, in which said means for degrading data representing color image data yields results for different image areas within the color image data, and in which the CSFis used for degrading luminance data and the CSFis used for degrading chrominance data; and means for altering the color image data by encoding plural-bit information therein, in which signal embedding strength of the encoding within the different image areas varies based on the results. Of course, other features, combinations and claims are disclosed as well.