Method of and apparatus for producing halftone dot film of grada

Details Method of and apparatus for producing halftone dot film of grada Method of and apparatus for producing halftone dot film of grada

1985-10-09

1987-01-06

Broome, Harold

Facsimile and static presentation processing

Facsimile

Recording apparatus

358298, 358280, 358283, H04N 121, H04N 140

Patent

active

046351310

ABSTRACT:
In an electronic image reproduction system, a halftone dot film of a density distribution of a specific pattern is produced by obtaining a value l expressed by an equation l=f(x)+g(y) representative of the specific pattern corresponding to the density value. By superimposing a density signal corresponding to the value l on an image signal developed by scanning an original, a reproduction image of the original, modulated by the density signal of a specific pattern, is obtained.

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