Method of and apparatus for producing halftone dot film of gradated density distribution
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United States of America Patent
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Jan 6, 1987
Grant Date -
N/A
app pub date -
Oct 9, 1985
filing date -
Oct 11, 1984
priority date (Note) -
Expired
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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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