Method and apparatus for reducing image noise
US9165346B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2014 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Apr 25, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T5/40
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention provide a method and an apparatus for reducing image noise. The method includes decomposing an original image into a luminance channel image and at least one chrominance channel image, and calculating a weighted average value of each pixel of the luminance channel image and the chrominance channel image by using luminance information, to correct each pixel of the luminance channel image and the chrominance channel image. By virtue of the embodiments of the present invention, it is possible to effectively avoid color dispersion at edges of images, to achieve easy implementation, and to effect low cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.