Apparatus & method for descreening
US5333064A · kind A · utility
14Cited by
6References
61Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1991 |
| Grant date | Jul 26, 1994 |
| Priority date | — |
| Expiry date | Aug 27, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/58
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and method for descreening and for performing resolution changes on a half-tone image in order to produce a continuous tone image. The apparatus includes filter apparatus for removing screen information from the half-tone image including a plurality of different filters each providing interpolation and screen removal functions and a controller for selecting per pixel of the continuous tone image and as a function of desired resolution changes, one of the filters for operation on a neighborhood of the pixel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.