Content adapted black level compensation for a HDR display based on dynamic metadata
US11836901B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2022 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Nov 7, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20208
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
One embodiment provides a method comprising determining metadata corresponding to an input image, determining a black level of a display device and a peak luminance value of the display device, and determining a tone mapping function that adaptively compensates for the black level of the display device based on the metadata, the black level of the display device, and the peak luminance value of the display device. The metadata comprises a distribution of luminance values in the input image. The black level of the display device and the peak luminance value of the display device represent a lowest luminance value and a highest luminance value, respectively, achievable on the display device. The method further comprises applying the tone mapping function to the input image to generate a tone-mapped image that adaptively compensates for the black level of the display device and provided to the display device for presentation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.