ALEXANDRIA, Va., June 19 -- United States Patent no. 12,333,624, issued on June 17, was assigned to Digimarc Corp. (Beaverton, Ore.).
"Modulating surface topcoats to embed digital watermarking" was invented by Alastair M. Reed (Lake Oswego, Ore.) and Kristyn R. Falkenstern (Portland, Ore.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A gloss value of a clear topcoat (e.g., flood of varnish) on a substrate relative to a bare substrate is an indicator of digital watermark robustness for an encoded signal carried by modulating the clear topcoat. This measurement can be used to predict encoded signal robustness prior to printing. One claim is directed to an image processing method comprising: obtaining a first ...