Image capture and marking
US6614915B2 · kind B2 · utility
26Cited by
127References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2002 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Jun 13, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/327
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital image is scanned to generate image data, which is processed to steganographically embed plural-bit auxiliary data. The system is useful, e.g., for capturing and marking digital images without noticeably changing their visual appearance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.