Threshold matrix, a method of generating the same, and a...

Details Threshold matrix, a method of generating the same, and a... Threshold matrix, a method of generating the same, and a...

2005-03-04

2009-02-17

Poon, King Y (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003140, C358S003260, C358S535000

Reexamination Certificate

active

07492483

ABSTRACT:
The number of pixels of a dot of a minimum size, a pattern frequency of an intermediate tone, the number of new dots of the minimum size at each dot percentage are determined. Then, thresholds in the threshold matrix are determined so that the optimum dot pattern at each dot percentage is obtained, and a threshold matrix is generated. A threshold matrix for C-separation is assigned to a separation for R that is complementary to C. A threshold matrix for M-separation is assigned to a separation for G that is complementary to M. A threshold matrix for Y-separation is assigned to a separation for B that is complementary to Y.

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