Multi-level error diffusion with color image data

Details Multi-level error diffusion with color image data Multi-level error diffusion with color image data

2008-01-01

2008-01-01

Rogers, Scott A. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003050, C358S003210, C358S003260, C358S534000

Reexamination Certificate

active

07315398

ABSTRACT:
A method for processing color image data to generate multi-level image data with arbitrary output levels and arbitrary level spacing. The method identifies a gray level spacing for each of a first and second color separation pixels and scales the gray level for each of the first and color separation pixels scaled to a common level spacing in relation to their corresponding gray level spacing. The scaled gray levels are then be thresholded to one of the two multi-level output values corresponding to the bounds of the gray level spacing.

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