Local change of an image sharpness of photographic images with masks
US7103228B2 · kind B2 · utility
21Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2002 |
| Grant date | Sep 5, 2006 |
| Priority date | — |
| Expiry date | Oct 22, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/58
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A process for the image sharpening of a photographic image with a multitude of image elements is disclosed, wherein a correction mask for the change of the image sharpness is determined from the image data representing the image to be corrected, whereby the elements of the correction mask for the change of the image sharpness locally describe the degree of contrast change to be carried out for the individual image elements, and whereby additional information relating to the image is used for the determination of the elements in addition to information on the local contrast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.