In a
facsimile
A facsimile (from Latin ''fac simile'', "to make alike") is a copy or reproduction of an old book, manuscript, map, Old master print, art print, or other item of historical value that is as true to the original source as possible. It differs from ...
system the halftone characteristic is either:
# the relationship between the density of the recorded
copy and the density of the original, or
# the relationship between the amplitude of the facsimile
signal to either the density of the object or the density of the recorded copy when only a portion of the
system
A system is a group of Interaction, interacting or interrelated elements that act according to a set of rules to form a unified whole. A system, surrounded and influenced by its environment (systems), environment, is described by its boundaries, ...
is under consideration. In an FM facsimile system, an appropriate parameter other than the amplitude is used.
See also
*
Halftone
Halftone is the reprographic
Reprography (a portmanteau of ''reproduction'' and ''photography'') is the reproduction of graphics through mechanical or electrical means, such as photography or xerography. Reprography is commonly used in catal ...
References
Fax
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