Adaptive screening in raster image processing of complex pages

Details Adaptive screening in raster image processing of complex pages Adaptive screening in raster image processing of complex pages

2007-06-26

2007-06-26

Rogers, Scott A. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003060, C358S003240, C358S001130

Reexamination Certificate

active

10630312

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.

REFERENCES:
patent: 5552898 (1996-09-01), Deschuytere
patent: 5748860 (1998-05-01), Shively
patent: 5758042 (1998-05-01), Deschuytere
patent: 6738153 (2004-05-01), Aschenbrenner et al.

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