Color management for limited gamut devices
US7609413B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2002 |
| Grant date | Oct 27, 2009 |
| Priority date | — |
| Expiry date | Apr 6, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatuses for performing color manipulation using virtual gamuts. In one aspect of the invention, a method to perform color manipulation on a digital processing system includes: performing color manipulation using a virtual gamut of a device if a real gamut of the device is poor in quality. When the real gamut of the device is wide, color manipulations are performed using the real gamut of the device. In one example according to this aspect, whether or not the real gamut of the device is poor in quality is determined by comparing an area of the real gamut with a threshold gamut area in a chromaticity diagram. A virtual profile of the device specifies the virtual gamut of the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.