Restoring digital image noise lost in a blur
US9536337B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 26, 2015 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | Oct 26, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10024
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention provide systems, methods, and computer storage media directed to restoring digital image noise lost in a blur process. In one embodiment, a noise reduction factor is calculated for each pixel of the digital image that has had a blur applied thereto. The noise reduction factor for a respective pixel is indicative of an estimated reduction in noise resulting from an amount of blur applied to the respective pixel. A noise compensation value can then be determined for each of the pixels, based on the noise reduction factor calculated for each of the pixels and a target noise level for the digital image as a whole. Once the noise compensation value is determined, noise can be applied to each of the plurality of pixels in accordance with the determined noise compensation value. Other embodiments may be described and/or claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.