Color gamut mapping method and device
US11640800B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2021 |
| Grant date | May 2, 2023 |
| Priority date | — |
| Expiry date | Nov 3, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a color gamut mapping method and a color gamut mapping device that allow precise color gamut tuning to be efficiently performed, and a display device including the same. A color gamut mapping method according to an aspect includes converting, by a color space converter, a first color signal of an input image into a first luminance component and a pair of first chrominance components, controlling, by a saturation controller, a saturation of the first chrominance component for each control area using a saturation gain and outputting a second chrominance component, controlling, by a hue controller, a hue of the second chrominance component for each control area and outputting a third chrominance component, entirely controlling, by an overall controller, a saturation and a hue of the third chrominance component using overall saturation gains and overall hue gains and outputting a fourth chrominance component, and inversely converting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.