ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,462,322, issued on Nov. 4, was assigned to Wacom Co. Ltd. (Saitama, Japan).
"Digital image watermarking by embedding identifier bits in blocks of digital image" was invented by Joss Daniel Giffard-Burley (Frome, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method and apparatus for digital image watermarking. In the method and apparatus, a computer system receives a first image and receive information for embedding in the first image. The computer system preprocesses the first image to produce a preprocessed first image and preprocesses the information by at least channel-encoding the information to produce preprocessed infor...