Apparatus and method for random screening

Details Apparatus and method for random screening Apparatus and method for random screening

1995-06-26

1997-11-25

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358534, H04N 123

Patent

active

056918232

ABSTRACT:
Apparatus and a method for random screening including an exposure select operator which receives two-dimensional coordinate information relating to a screen and input density information relating to an image to be screened, the operator being characterized in that for a constant input density it provides a constant exposure output over each of a multiplicity of groups of contiguous coordinate regions, at least some of which groups are mutually non-aligned.

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patent: 5602971 (1997-02-01), Deschuytere
R. Floyd and L. Steinberg, "An Adaptive Algorithm for Spatial Gray Scale", Proc. of the SID, vol. 17, No. 2, pp. 75-77, 1976.

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