Emulsion products and imagery employing steganography
AssigneeDigimarc Corporation
InventorGeoffrey B. Rhoads
Life of this patent
Estimating the term…
Abstract
Images are steganographically marked with codes that can be used, e.g., by reference to a remote registry, to identify the image proprietors. Some embodiments pre-mark blank emulsion film or paper products with such codes, so that images formed thereon can be traced back to their proprietors. A variety of other embodiments and technologies are also disclosed.
Claims4
A blank photographic emulsion film or paper product for exposing and developing to produce an image thereon, characterized by plural bits of digital data steganographically encoded therein.
A registry for associating images with image proprietors, the registry comprising a data structure that associates first and second together, the first data identifying an image code with which an image is steganographically marked, and the second data identifying a proprietor of the image identified by the first data, wherein a user of a steganographically marked image can consult the registry to determine the proprietor to which a copyright payment may be owed for use of the image.
A computer storage medium having a digital image stored therein, the digital image having a plural-bit code steganographically encoded therein, the code serving—by reference to a remote data structure—to identify a proprietor of said image.
Dependencies are inferred from the claim text.