Method and apparatus for elimination of color from multi-color image documents
US5621816A · kind A · utility
11Cited by
9References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 22, 1995 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Feb 22, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/143
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for the elimination of color from a multi-color image document is described. All color information for every picture element of the image of the document is provided concurrently and for every picture element PEL the image signal of all provided colors are analyzed and for every picture element that image signal of that color is selected which has the minimum contrast relative to the background of the image document.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.