Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2006-11-28
2006-11-28
Rogers, Scott A. (Department: 2625)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S002100, C358S003150, C358S003260, C382S252000, C382S270000, C382S275000
Reexamination Certificate
active
07142330
ABSTRACT:
An image processing method of quantizing multi-tone image data by an error diffusion method, includes the steps of a) detecting change of the image data; and b) oscillating cyclically in image space a threshold for the quantization in an oscillation range controlled according to the detection result of the step a).
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Morimoto Etsuo
Takahashi Hiroshi
Tonami Kazunari
Ricoh & Company, Ltd.
Rogers Scott A.
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