Method and device for color gamut mapping
US11184508B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2018 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | May 27, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6061
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present principles relate to a method and device for gamut mapping from a first color gamut towards a second color gamut. The method comprises obtaining a preserved key color (prsv_colorK0) and a hue alignment angle (θK0) of the key color (colorK0) for each key color (colorK0) of at least 3 key colors to define a preserved gamut and a rotated gamut; and performing a hue mapping of a current color (color) from the first color gamut towards the second color gamut wherein in case the current color (color) is in a preserved gamut defined by the preserved key color (prsv_colorK0), the hue mapped current color is unchanged, and in case the current color is out of the preserved gamut, the hue mapped current color is calculated from the hue alignment angle (θK0) of two adjacent key colors of the current color (rotated gamut) and from the preserved area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.