Apparatus and method for image noise reduction
US7551799B2 · kind B2 · utility
7Cited by
10References
20Claims
0Family size
Assignee
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Key dates
| Filing date | May 13, 2005 |
| Grant date | Jun 23, 2009 |
| Priority date | — |
| Expiry date | Dec 7, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10024
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hardware implemented method for reducing noise in an image is provided. In this method, a difference between color values of corresponding pixels within the image is calculated, and the calculated difference is compared with a threshold value. The threshold value is defined as a rate of color value change between the corresponding pixels. If the calculated difference is greater than the threshold value, the color value of at least one of the corresponding pixels is replaced with an average color value. A graphics controller and image capture device interface for reducing noise in an image also are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.