Local definition of global image transformations
US9466098B2 · kind B2 · utility
1Cited by
13References
24Claims
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Key dates
| Filing date | Nov 26, 2014 |
| Grant date | Oct 11, 2016 |
| Priority date | — |
| Expiry date | Dec 10, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30201
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A global image adjustment, such as dynamic range adjustment is established based on image characteristics. The image adjustment is based more heavily on pixel values in image areas identified as being important by one or more saliency mapping algorithms. In one application to dynamic range adjustment, a saliency map is applied to create a weighed histogram and a transformation is determined from the weighted histogram. Artifacts typical of local adjustment schemes may be avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.