Tone mapping method
US10229484B2 · kind B2 · utility
2Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2016 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | Apr 11, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20208
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Tone mapping is applied to pixels of a digital image. A luminance value of a pixel is determined based on whether one or more pixel intensity values of a pixel in a color space are within a pixel saturation range. A pixel gain is determined based on the determined luminance value of the pixel, and the determined pixel gain is applied to the pixel. The luminance value may also or instead be determined based on whether one or more of the pixel intensity values is within a pixel black-out range. A weight may be employed to determine the luminance value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.