Method and apparatus for enhancing detail in an image
US7742651B2 · kind B2 · utility
0Cited by
9References
20Claims
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Key dates
| Filing date | Apr 5, 2004 |
| Grant date | Jun 22, 2010 |
| Priority date | — |
| Expiry date | Jul 2, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10016
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The detail in an image can be enhanced by selective filtering to separate at least one part of the frequency spectrum of the image from a remaining part of the image. The amplitude of the separated part of the frequency spectrum of image is changed and the amplitude-changed portion is combined with the remaining part of the image. The filtering and/or the change in amplitude is controlled at least in part in response to the content of the image to enhance the detail level of the image where appropriate, while preventing enhancement in areas of the picture where it is likely that artifacts would be generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.