Methods and systems for processing documents using multiple halftone screening techniques
First Claim
1. A method of processing a document for printing;
- the method comprising;
receiving a document;
for each of a plurality of regions of the document,determining a drop size for printing the region, anddetermining whether the drop size for printing the region meets a first threshold criterion and, if so, processing the region using a tile-based screen for halftoning, otherwise determining whether a coverage level for printing the region meets a second threshold criterion and, if so, processing the region using a tile-based screen for halftoning and, if not, processing the region using an error diffusion screen for halftoning; and
printing the processed regions.
1 Assignment
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Accused Products
Abstract
A method of processing a document for printing includes receiving a document; for at least one of the plurality of regions, determining a drop size for that region and determining whether the drop size for printing the region meets a threshold criterion and, if so, processing the region using a tile-based screen for halftoning and, if not, processing the region using an error diffusion screen for halftoning; and printing the processed regions. Another method includes additionally considering coverage level to determine whether to use a tile-based screen or error diffusion screen. Yet another method includes determining whether the region is within a threshold range of a drop step change.
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Citations
20 Claims
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1. A method of processing a document for printing;
- the method comprising;
receiving a document; for each of a plurality of regions of the document, determining a drop size for printing the region, and determining whether the drop size for printing the region meets a first threshold criterion and, if so, processing the region using a tile-based screen for halftoning, otherwise determining whether a coverage level for printing the region meets a second threshold criterion and, if so, processing the region using a tile-based screen for halftoning and, if not, processing the region using an error diffusion screen for halftoning; and printing the processed regions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- the method comprising;
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14. A method of processing a document for printing;
- the method comprising;
receiving a document; for each of a plurality of regions of the document, determining whether the region is within a threshold range of a drop step change and, if so, processing the region using a tile-based screen for halftoning and, if not, processing the region using an error diffusion screen for halftoning, wherein the threshold range is a physical distance on media or a number of pixels; and printing the processed regions. - View Dependent Claims (15, 16, 17, 18, 19, 20)
- the method comprising;
Specification