Simplification of local contrast compensation by using weighted look-up table
US9245495B2 · kind B2 · utility
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25Claims
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Key dates
| Filing date | Dec 21, 2012 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | Dec 21, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/066
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems, apparatus, articles, and methods are described including operations to generate a weighted look-up-table based at least in part on individual pixel input values within an active block region and on a plurality of contrast compensation functions. A second level compensation may be performed for a center pixel block of the active region based at least in part on the weighted look-up-table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.