Fluorescent color scanning method for use in a scanner
US7324243B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 4, 2003 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Apr 12, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/56
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A fluorescent color scanning method is disclosed to include the steps of: scanning a standard white to obtain a first reference white W1; reducing the scanning brightness and then scanning the standard white to obtain a second reference white W2; using the first reference white and second reference white to scan every scanning document and then storing the respective scanning results Pm and Qm; and comparing Qm to W2 so as to determine if the document contains a fluorescent color or not subject to: (i) determining that the document contains a fluorescent color if Qm>W2, and then converting Qm into the accurate color output Om; and (ii) determining that the document contains no fluorescent color if Qm≦W2 and then using the value of Pm as the image output value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.