Method and device for adjusting contrast
US10210604B2 · kind B2 · utility
2Cited by
2References
16Claims
0Family size
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Key dates
| Filing date | Dec 31, 2015 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Dec 31, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10024
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for adjusting contrast includes: acquiring a corresponding grey-scale image of a current image; dividing the grey-scale image to obtain a plurality of divided regions; calculating JND values corresponding to the divided regions based on an area of each of the divided regions; and calculating a target contrast based on the JND value of each of the divided regions and a background brightness of the current image; adjusting the contrast of the current image based on the target contrast and a predetermined condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.