Scan-to-print color rendering

Details Scan-to-print color rendering Scan-to-print color rendering

2007-03-09

2010-11-02

Lee, Thomas D (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S001160, C358S504000

Reexamination Certificate

active

07826093

ABSTRACT:
Scan-to-print color rendering in a system including a scanner engine and a print engine may include, in an exemplary embodiment, storing or providing an index table of respective scanned values in a scanner color space corresponding to each output color printed by the print engine. A color target may be scanned using the scanner engine to provide digital image data in a scanner color space. For each image-scan pixel, a closest scanned value is selected from the index table for a corresponding output color. A color difference is determined a between the image-scan pixel and the closest value as an error for that image-scan pixel. Color error diffusion is applied to compensate for the color difference by distributing the error to neighbor pixels.

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