Method and apparatus for eliminating seams in screened image...

Details Method and apparatus for eliminating seams in screened image... Method and apparatus for eliminating seams in screened image...

2008-07-01

2008-07-01

Haskins, Twyler L. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003200, C358S001900, C358S003070, C358S003260, C382S282000, C382S269000, C399S276000, C399S176000

Reexamination Certificate

active

10442682

ABSTRACT:
A method of modifying screened image data so that there is no visible seam when the image is printed repeatedly in a circumferential direction, for example using a drum output device. One version applicable to images screened using a supercell includes cutting the image so that the image size in the circumferential direction is an integral number of screen supercells. Another version includes displacing halftone dots in a neighborhood of the seam such that the seam is not visible in a repeated print.

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