Image processing method and image processor
US6961462B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2002 |
| Grant date | Nov 1, 2005 |
| Priority date | — |
| Expiry date | Dec 23, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T9/005
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In the invention, an input image is divided into plural small regions. The color data in each small region are classified to the present group, and plural components are selected in descending order of the variance from the representative color obtained from each group. The color data in the objective group is divided into plural groups in the direction of the selected component, and the representative color of each group is extracted. Such sequential group dividing and the representative color extracting are repeated until a specific number of representative colors are obtained. Therefore the high precise compression and approximation of image can be performed at high speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.