Zone-based tone mapping
US9087382B2 · kind B2 · utility
7Cited by
14References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2010 |
| Grant date | Jul 21, 2015 |
| Priority date | — |
| Expiry date | Dec 9, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20208
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of tone mapping high dynamic range images for display on low dynamic range displays wherein a high dynamic range image is first accessed. The high dynamic range image is segmented into different regions such that each region is represented by a matrix, where each element of the matrix is a weight or probability of a pixel. An exposure of each region is determined or calculated and the exposure values are applied to the regions responsive to the weight or probability. The different regions are then fused together to obtain a final tone mapped image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.