Data embedding
Patent
·
OSTI ID:527744
A method is disclosed for embedding auxiliary information into a set of host data, such as a photograph, television signal, facsimile transmission, or identification card. All such host data contain intrinsic noise, allowing pixels in the host data which are nearly identical and which have values differing by less than the noise value to be manipulated and replaced with auxiliary data. As the embedding method does not change the elemental values of the host data, the auxiliary data do not noticeably affect the appearance or interpretation of the host data. By a substantially reverse process, the embedded auxiliary data can be retrieved easily by an authorized user. 19 figs.
- Research Organization:
- Univ. of California (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- Assignee:
- PTO; SCA: 990200; PA: EDB-97:128883; SN: 97001843783
- Patent Number(s):
- US 5,659,726/A/
- Application Number:
- PAN: 8-392,642
- OSTI ID:
- 527744
- Resource Relation:
- Other Information: PBD: 19 Aug 1997
- Country of Publication:
- United States
- Language:
- English
Similar Records
Data embedding employing degenerate clusters of data having differences less than noise value
Data embedding
Data embedding employing degenerate clusters of data having differences less than noise value
Patent
·
Thu Jan 01 00:00:00 EST 1998
·
OSTI ID:527744
Data embedding
Patent
·
Wed Jan 01 00:00:00 EST 1997
·
OSTI ID:527744
Data embedding employing degenerate clusters of data having differences less than noise value
Patent
·
Tue Oct 06 00:00:00 EDT 1998
·
OSTI ID:527744