Color correction method and color correction device for obtaining target gamma information of a target color space
US12046217B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2022 |
| Grant date | Jul 23, 2024 |
| Priority date | — |
| Expiry date | Feb 14, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the disclosure provide a color correction method and a color correction device. The method includes: obtaining native gamma information and native color point information of a display; obtaining target gamma information and target color point information of a target color space; obtaining a gamma correction parameter associated with the display based on the native gamma information and the target gamma information; determining a first pseudo gamma parameter based on the target gamma information; determining a second pseudo gamma parameter based on an inverse gamma operation of the target gamma information; determining a pseudo color space conversion matrix based on the native color point information and the target color point information; and updating a 3D lookup table of the display based on the first pseudo gamma parameter, the pseudo color space conversion matrix, and the second pseudo gamma parameter in sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.