Document rehabilitation
US7319542B2 · kind B2 · utility
5Cited by
16References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2002 |
| Grant date | Jan 15, 2008 |
| Priority date | — |
| Expiry date | Jul 26, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/40093
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of document rehabilitation typically includes providing an original document having a set of desirable markings that are substantially achromatic, and a set of undesirable markings, and generating an image file that includes color data corresponding to the original document. A transform filter may be applied to the image file so that the color data for each undesirable marking is mapped to a non-reproduced color, and the color data for each desirable marking is unchanged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.