Technique for interpolating a color image for image enlargement or reduction based on look-up tables stored in memory
US4833531A · kind A · utility
33Cited by
14References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1987 |
| Grant date | May 23, 1989 |
| Priority date | — |
| Expiry date | Apr 16, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/56
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing system capable of image enlargement and reduction. Interpolation data is stored in memory in the form of look-up tables for producing image data interpolating between adjacent pixels. The interpolation is carried out based on a selection signal determined in accordance with the designated magnification. The stored interpolation data has a plurality of data tables having distinctive conversion characteristics. A particular data table can be selected in accordance with a property of the original image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.