Image processing device and image processing program for...

Details Image processing device and image processing program for... Image processing device and image processing program for...

2007-11-20

2007-11-20

Lamb, Twyler (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003160, C358S003190, C358S003030, C358S003130, C358S003220, C382S270000, C382S252000, C382S251000, C382S266000

Reexamination Certificate

active

10244382

ABSTRACT:
In a halftone module, it is judged whether or not the value “rate” for each pixel is greater than zero (0). In other words, it is judged whether or not the eight-bit input data Iin of each pixel is around a half of the relative density value for a small dot of a corresponding color. If the eight-bit input data Iin of the subject pixel is near to a half of the relative density value for a small dot, noise is added to the threshold values Ta, Tb, and Tc. The noise-added threshold values Ta′, Tb′, and Tc′ are used in the comparing process.

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patent: 6089691 (2000-07-01), Kakutani
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patent: 6215561 (2001-04-01), Kakutani
patent: 6625327 (2003-09-01), Ohshima et al.
patent: A 59-201864 (1984-11-01), None

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