Method and system for transforming color coordinates by direct calculation
US6377270B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1999 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Jul 30, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0673
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method of gamma correction of pixel color coordinates by direct calculation is provided. The response characteristics of a graphics display device are modeled to produce a set of transformation functions. The parameters that describe the transformation functions are then sent to a transformation unit. To display a pixel, the transformation unit evaluates the transformation functions. Color coordinates of the pixel are used as inputs in the evaluation of the transformation functions. This produces transformed pixel color coordinates. The transformed pixel color coordinates are then sent to the graphics display device. The pixel can then be displayed with its originally intended color.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.