Apparatus and method for generating a screened reproduction of a

Details Apparatus and method for generating a screened reproduction of a Apparatus and method for generating a screened reproduction of a

1993-11-30

1996-04-16

Coles, Sr., Edward L.

Facsimile and static presentation processing

Natural color facsimile

Specific image-processing circuitry

358459, 358534, 358456, H04N 140, H04N 138, H04N 146

Patent

active

055088287

ABSTRACT:
A method for generating a screened reproduction of an image including the steps of providing a representation of an original having input density values representing the grey levels of various locations of the original for a given color separation, defining a desired irregular screen function for the image and writing screen segments in a line by line fashion, wherein each screen segment is a line whose length and location is determined by employing the input density values of the original and the desired irregular screen function.

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Allebach, J. P., "Random Nucleated Halftone Screen", Photograph Science and Engineering, vol. 22, No. 2, Mar. 1978, Washington, pp. 89-91.

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