System and method for enhancement of document images
US7177483B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 24, 2003 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Jul 20, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30176
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for enhancing electronic images of a document, in which the electronic images contain a background with foreground markings, includes receiving an electronic image containing pixels and assigning an initial provisional foreground/background status to the pixels. The initial foreground/background estimate is revised and a determination is made as to whether the revised foreground/background estimate is to be the final status assignment for the pixels of the image. If a final pixel status assignment has not been achieved, the estimate is again revised until a final foreground/background status is reached for the image pixels prior to creation of an output image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.