Method for digitally magnifying images
US8005319B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2007 |
| Grant date | Aug 23, 2011 |
| Priority date | — |
| Expiry date | Apr 20, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0081
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for digitally magnifying images applied to an electronic device includes the steps of: reading in a preview image inputted into the electronic device; executing a 2-fold image magnifying process to the preview image; executing a fuzziness removing process to the preview image; segmenting the preview image into a background area and a text area, executing a correspondingly text strengthening process to the text area; and determining if the preview image is magnified up to a predetermined amplification factor; if yes, outputting the preview image after being magnified to a display screen for displaying the preview image; and otherwise, going back to re-execute the 2-fold image magnifying process to the magnified preview image, and then executing the fuzziness removing process and the text strengthening process, in order to generate the preview image magnified about 4-fold or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.