Image analysis – Color image processing – Color correction
Reexamination Certificate
2006-12-05
2006-12-05
Bali, Vikkram (Department: 2624)
Image analysis
Color image processing
Color correction
C382S275000, C358S003260, C358S518000
Reexamination Certificate
active
07146043
ABSTRACT:
A method for smooth trapping of thin graphical objects, wherein a thin graphical object has a width dimension which is substantially less than the object's length dimension, includes receiving from a trap generator the location of a trap pixel that should be changed in color; determining the width of the object containing the trap pixel; comparing the width of the object with a trap threshold width; if the size of the object is less than the trap threshold width, reducing the width of the trap region according to a predetermined relationship; and applying a trap correction to the trap pixel according to the reduced trap width. The predetermined relationship may be a linear relationship which reduces the trap width monotonically for object widths less than the trap threshold width. The method may be applied to small objects and small font text objects.
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Bali Vikkram
LaRose Colin
Walder Jeannette
Xerox Corporation
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