Adaptive method and apparatus for adjustment of pixels in a color gamut based on a reference target color
US7649657B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2006 |
| Grant date | Jan 19, 2010 |
| Priority date | — |
| Expiry date | Jan 1, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/628
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for an image adaptive color adjustment of pixels in a color gamut is disclosed. The method includes calculating a representative value that shows color characteristics of pixels included in a color gamut, calculating a final target color required to convert the representative value to approach a reference target point existing in the color gamut, and converting the pixels included in the color gamut to approach the final target color. The apparatus includes a color gamut boundary storage module; a reference target point storage module; a target color determination module which calculates a representative value that shows color characteristics of pixels included in a color gamut and calculates a final target color required to convert the representative value to approach the reference target point; and a color conversion module which converts the pixels included in the color gamut to approach the final target color.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.