Apparatus and method for dither matrix design for color halftoning using dispersed dot clusters
US6724501B2 · kind B2 · utility
5Cited by
1References
24Claims
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Key dates
| Filing date | Jun 22, 2001 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Dec 27, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/52
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for dither matrix design for color halftoning using dispersed dot clusters where the dot cluster centers are arranged in a homogeneous and isotropic pattern, in order avoid the moiré effect. The method requires that the size of the array and the number of dot seeds that will be in the array be predetermined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.