Halftone image recording method and apparatus

Details Halftone image recording method and apparatus Halftone image recording method and apparatus

1986-09-04

1988-10-25

Shaw, Clifford C.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358283, H04N 121

Patent

active

047807687

ABSTRACT:
A halftone image recording apparatus has an interpolating function for interpolating previously obtained first halftone pattern data in the main scanning direction to obtain second halftone pattern data. Comparisons between input image signals and the second halftone pattern data per pixel are made to expose a photosensitive material on the basis of the results of the comparisons thereby to create a halftone plate. Through the interpolation, the recording density in the main scanning direction is increased in response to the rate of increase in pixel density.

REFERENCES:
patent: 4433346 (1984-02-01), Stoffel et al.
patent: 4447833 (1984-05-01), Sano et al.

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