Method and system for preparing grayscale image files for highlight printing on a four color printer
US7583837B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 15, 2004 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Dec 19, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2215/0094
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system converts grayscale image data into device independent image data that mimics highlight printing of the grayscale image at a full color printer. The system is preferably implemented in a plug-in for a document control program so a data object associated with the document control program may be used to generate device independent color space data from the grayscale data. A data converter uses a device independent profile to convert the device independent color space data to a second device independent color space that corresponds to a selected highlight for printing. When a device dependent profile associated with a printing station converts the second device independent color space data for printing, the resulting four color data emulates highlight printing of the original grayscale image. Thus, a full color printer may be used for grayscale printing, duotone printing, and full color printing without requiring tone or ink changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.