Tone mapping adaptation for saturation control
US11024017B2 · kind B2 · utility
4Cited by
7References
21Claims
0Family size
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Key dates
| Filing date | Nov 30, 2018 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Nov 30, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20208
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and methods is provided for performing, by a processor, an initial tone mapping function on a first image to produce a second image. The first and second images are of different dynamic ranges. The method also includes applying, by the processor, a second tone mapping function to the second image when it contains any saturated portions. The second tone mapping function lowers luminance by a first fraction. The overall luminance of the second image is also determined and a fine tuning filter is applied when at least portions of said second image contain areas darker than an amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.