Image stitching for a multi-head printer

Details Image stitching for a multi-head printer Image stitching for a multi-head printer

2010-09-01

2011-12-06

Garcia, Gabriel (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Dot matrix array

C358S003270

Reexamination Certificate

active

08072644

ABSTRACT:
Techniques are disclosed for stitching images printed by a multi-head printer in a manner that is relatively insensitive to misregistration of the image segments. When a pair of overlapping print heads print a pair of adjacent image segments which meet in a stitching region, printing at each location in the stitching region is accomplished by both print heads with a weighting that depends on the location being printed within the stitching region. In one embodiment, for example, the output of each print head is weighted by a linear function of horizontal pixel position. Techniques are also disclosed for selecting screening patterns for use when stitching is performed with variable-dot printers. Such screening patterns are selected to minimize variations in density that may arise as the result of cross-web and/or down-web misregistration.

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