Image processing method and apparatus
US11301970B2 · kind B2 · utility
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3References
17Claims
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Key dates
| Filing date | Aug 23, 2019 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Nov 19, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/4072
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing method acquires an image, restores a saturated region in which a pixel in the image has a first reference value based on a first illuminance component of the image, enhances a dark region in which a value of a pixel in the image is less than a second reference value based on the restored saturated region and the first illuminance component, and outputs a dark region-enhanced image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.