Auto white balance adjusting method and auto white balance adjusting system by using dynamic window allocations
US12149837B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2023 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Aug 4, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/73
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An auto white balance adjusting method includes acquiring an image, allocating N windows inside the image according to color information of the image, filtering out M windows from the N windows for generating N-M windows according to feature information of the N windows, grouping the color temperatures of the N-M windows for generating at least one color temperature group according to a standard color temperature curve, setting a first weighting of the at least one color temperature group according to a correlation between the at least one color temperature group and the standard color temperature curve, setting a second weighting of the at least one color temperature group according to spatial information of the at least one color temperature group of the image, and adjusting a white balance of the image according to color information, the first weighting, and the second weighting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.