Portable digital camera with red eye filter
US7474341B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2007 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Jul 19, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30216
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital camera has an integral flash and stores and displays a digital image. Under certain conditions, a flash photograph taken with the camera may result in a red-eye phenomenon due to a reflection within an eye of a subject of the photograph. A digital apparatus has a red-eye filter which analyzes the stored image for the red-eye phenomenon and modifies the stored image to eliminate the red-eye phenomenon by changing the red area to black. The modification of the image is enabled when a photograph is taken under conditions indicative of the red-eye phenomenon. The modification is subject to anti-falsing analysis which further examines the area around the red-eye area for indicia of the eye of the subject. The detection and correction can be optimized for performance and quality by operating on subsample versions of the image when appropriate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.