Methods, devices, and systems for creating and compressing multi-level halftones
US7444027B2 · kind B2 · utility
2Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 25, 2002 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Oct 28, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T9/005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods, devices and systems for compressing images are provided. One method includes creating halftone mask structures and applying compression coding techniques to arrayed pixels sorted using the halftone mask structures in order to convert an image to a compressed multi-level, halftoned image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.