System and method for effectively implementing a dither...

Details System and method for effectively implementing a dither... System and method for effectively implementing a dither...

2006-08-08

2006-08-08

Rogers, Scott A. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003140

Reexamination Certificate

active

07088473

ABSTRACT:
A system and method for effectively implementing a dither matrix for an electronic printer device may preferably create an improved dither matrix with optimal threshold values for use in a corresponding dither tile. During a matrix populating procedure for assigning tile threshold values for the dither matrix, the dither tile may preferably be embedded within a larger frame area of additional adjacent frame cells. A design entity may then preferably compute various cost functions when the additional boundary cells of the frame area are in place. The embedded dither matrix of the dither tile is thus preferably populated within the foregoing frame area so that various boundary effects may be taken into account when an overall cost function of both the dither tile plus the frame area is calculated.

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J. Sullivan, L. Ray, and R. Miller, Design of Minimum Visual Modulation Halftone Patterns, IEEE Trans. On Systems, Man, and Cybernetics, vol. 21, No. 1, Jan. 1991, pp. 33-38.
Digital Color Halftoning by Henry R. Kang, SPIE/IEEE series on Imaging Science & Engineering 1999, pp. 213-278.

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