Image quantization processing with error diffusion using...

Details Image quantization processing with error diffusion using... Image quantization processing with error diffusion using...

2006-11-20

2009-12-22

Rogers, Scott A (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003170, C358S003260, C382S252000, C382S270000, C382S275000

Reexamination Certificate

active

07636179

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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