Overflow error diffusion

Details Overflow error diffusion Overflow error diffusion

2006-05-09

2006-05-09

Dildine, R. Stephen (Department: 2133)

Image analysis

Image compression or coding

Gray level to binary coding

C345S596000, C345S597000, C345S598000, C345S599000, C345S616000, C358S003030, C358S003040, C358S003050, C358S003220, C382S252000

Reexamination Certificate

active

07043089

ABSTRACT:
Methods, devices and systems for overflow error diffusion in image processing are provided. A method includes calculating error values, em, corresponding to differences between modified intensity values for a number of pixel locations and one or more threshold values, where emrepresents an error value associated with an mthpixel. The method further includes diffusing a calculated overflow error value associated with each calculated error value, em, to at least one pixel neighbor of the mthpixel location.

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Metaxas, P.; Parallel digital halftoning by error-diffusion; Jun. 2003; Proceedings of the Paris C. Kanellakis memorial workshop on Principles of computing & knowledge: Paris C. Kanellakis memorial workshop on the occasion of his 50th birthday PCK50.

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