Image processing apparatus and method, and storage medium
US6801636B2 · kind B2 · utility
15Cited by
26References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2001 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Dec 6, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/3233
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing apparatus and method for deriving a digital watermark embedded in an image is provided which has a recognizing unit for recognizing a predetermined characteristic area in the image and a deriving unit for extracting the digital watermark from the image data in the recognized characteristic area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.