Color matching for a printing process using more than four colorants using a four-colorant color management system
US7164498B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 20, 2002 |
| Grant date | Jan 16, 2007 |
| Priority date | — |
| Expiry date | Apr 7, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/603
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for representing a digital image in an extended CMYK color space that has an extended color gamut. The image is for output to an output device that uses a set of more than four colorants and is capable of reproducing the extended color gamut. The method includes providing a transformation from the extended CMYK color space to amounts of each of the set of colorants of the output device, providing a device profile for the extended CMYK color space that is associated with the transformation and that provides for converting a first color represented by a first set of color coordinate values in a first color space into a set of CMYK values in the extended CMYK color space such that the output device behaves as if it was a CMYK device with the extended CMYK values, and representing the digital image in the extended CMYK color space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.