Denoising method and denoising device for reducing noise in an image
US11889242B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2021 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Jul 14, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/135
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of reducing noise in an input image by setting, as a local window among color pixels included in the input image, a target pixel and neighboring pixels adjacent to the target pixel, determining color pixel values for the target pixel and each of the neighboring pixels included in the local window, generating local color average values are generated by averaging, color by color, the color pixel values, generating offset color pixel values by converting the color pixel values of the target pixel and the neighboring pixels based on the local color average values, and generating a compensated color pixel value of the target pixel by adjusting the color pixel value of the target pixel based on the offset color pixel values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.