System and method for detecting blemishes in an image captured by an electronic device
US8290296B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 2, 2009 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Mar 2, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2101/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for detecting blemishes in a RGB image captured by an electronic device includes following steps. The image is read from the electronic device. A center point of the image is defined. Pixels of radials radiating from the center point of the image are detected for detecting blemishes in the image. Blemishes in the image are counted. A total blemish number is compared with a maximum tolerable blemish number. If the total blemish number in the image exceeds the maximum tolerable blemish number, displaying test failure; and if the total blemish number in the image does not exceeds the maximum tolerable number, displaying test pass. A blemish detection system associated with the method is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.