Method for darkness correction of trapped pixels

Details Method for darkness correction of trapped pixels Method for darkness correction of trapped pixels

2008-03-04

2008-03-04

Tran, Douglas Q. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S001140, C358S518000, C358S003260, C358S504000, C382S165000, C382S167000, C382S178000, C382S199000, C382S203000

Reexamination Certificate

active

10320832

ABSTRACT:
A method for correcting for edge defects caused by print characteristics of a print engine includes printing a set of actual color patches corresponding to a desired set of colors; defining an edge region and a uniform area region in each of the patches; for each color patch in the set of actual color patches: determining a difference between color in the edge region of the patch and color in the uniform area region of the patch; and generating an edge response to adjust color output of the print engine in the edge region to substantially match color output in the uniform area region. The method can perform edge correction for any edge region of an image. In one embodiment of the invention, the edge region may be determined by a trap engine associated with the print engine and the method can provide correction for trap pixels.

REFERENCES:
patent: 4951160 (1990-08-01), Nagahara et al.
patent: 5668931 (1997-09-01), Dermer
patent: 6262747 (2001-07-01), Rocheleau et al.
patent: 6345117 (2002-02-01), Klassen
patent: 6504949 (2003-01-01), Matsukubo et al.
patent: 6844942 (2005-01-01), Rumph et al.
patent: 7123381 (2006-10-01), Klassen
patent: 2003/0043424 (2003-03-01), Bhaskar et al.
patent: 2003/0063338 (2003-04-01), Gudaitis et al.
patent: 2003/0142865 (2003-07-01), Hirota et al.
patent: 2003/0160985 (2003-08-01), Bailey

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