Method, apparatus, and program for image processing capable of preventing and detecting tampering, and a medium storing the program
US7590289B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2004 |
| Grant date | Sep 15, 2009 |
| Priority date | — |
| Expiry date | Mar 31, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/608
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, apparatus, and program for image processing are provided to perform operations of generating a verification document image and detecting tampering on the verification document image. The verification document image is generated by a document image generator, which adds a verification pattern to an original document image received from a document provider. A tampering detector determines whether the verification document image has been tampered based on the verification pattern. The output unit prints out, under control of a controller, the verification document image as well as information on whether tampering is detected. The above operations are performed on a network, such as the Internet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.