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Use r’s Man ua l
4- 13
Fix ed Pr oce ssing: Used for black- and-
white and ot her high contrast docum ent s. A
single level is set t o det erm ine t he black-
and-whit e t ransit ion. The threshold is
program m able over t he ent ire densit y
range. Fixed Processing set s Contrast t o
0. I f Fix ed Processing is select ed,
Contrast is not available.
Halft one: I n addit ion to t he black and
whit e display, Halft one can present a
som ehow gray shade of im age by using
different size of dot s. Halftone im age looks
like the pict ure we have seen in t he
newspaper. Options inclu de Ha lft one 1 ,
Halft one 2 , Halft one 3 , Halft one 4 ,
Halft one 5 .
Er r or Diffu sion : Error Diffusion is a t ype
of Halftone. Error Diffusion gives good
im age t exture and m akes text in im ages
m ore readable than Halft one.
Halft one I m a ge
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