Lightness mapping in two steps
US10284750B2 · kind B2 · utility
2Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2017 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Jul 3, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6058
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Said method comprises a first cusp-oriented lightness-mapping step and a second lightness-mapping step in which a source color (N) is mapped into a mapped color (N″) having the same hue (H″=H) and the same chroma (C″=C) as the source color, where the second mapping step is defined such as to bring more colors in a target color gamut and more colors closer to the boundary of this target gamut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.