Adaptive screening in raster image processing of complex pages
US7236268B2 · kind B2 · utility
4Cited by
4References
8Claims
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Key dates
| Filing date | Jul 30, 2003 |
| Grant date | Jun 26, 2007 |
| Priority date | — |
| Expiry date | Feb 8, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K15/1856
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of data processing is described for generating a screened bitmap in an adaptive manner. The page being printed is subdivided into a plurality of smaller areas, and the optimal screening method is selected based on the content of the data being processed. Areas of the page that primarily comprise of graphic elements and/or fonts are screened as part of the rendering process, while areas that are primarily continuous tone elements are screened as a secondary step after the rendering process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.