Multiple layer cluster dither matrix for reducing artifacts in printed images
US5920682A · kind A · utility
40Cited by
21References
22Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 20, 1996 |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | Sep 20, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/4058
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A technique for reducing image artifacts is described. The technique includes utilizing a clustered-dot dither matrix having a plurality of layers with each of the layers arranged in one of a plurality of complementary patterns within the dither matrix. By using a dither matrix which generates layers of dots in complementary patterns, image banding artifacts and ink bleeding characteristics resulting from a printer generating a halftone image using a clustered-dot dithering technique are reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.