초록 ▼

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 vari

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.

대표청구항 ▼

1. 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.2. The product of claim 1 wherein said plural bits of digital data serve to associate the product with a par

1. 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.2. The product of claim 1 wherein said plural bits of digital data serve to associate the product with a particular image proprietor.3. 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.4. 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.