Image enhancement method and device based on non-classical receptive field suppression
US9704225B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2015 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Oct 22, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20192
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image enhancement method calculates a central response value of a target pixel based on an original pixel value of the target pixel. The method includes calculating a first total suppression value of the target pixel, where the values of suppression to the target pixel from the neighborhood pixels refer to values representing suppression effects imposed by the neighborhood pixels on the target pixel. When the central response value is greater than the first total suppression value, the first total suppression value is subtracted from the central response value, and the difference is used as a pixel value of the target pixel after image enhancement. When the central response value is less than the first total suppression value, a value 0 is used as a pixel value of the target pixel after image enhancement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.