User’s Manual
Fixed Processing: Used for black-and-
white and other high contrast documents. A
single level is set to determine the black-
and-white transition. The threshold is
programmable over the entire density
range. Fixed Processing sets Contrast to
0. If Fixed Processing is selected,
Contrast is not available.
Halftone: In addition to the black and
white display, Halftone can present a
somehow gray shade of image by using
different size of dots. Halftone image looks
like the picture we have seen in the
newspaper. Options include Halftone 1,
Halftone 2, Halftone 3, Halftone 4,
Halftone 5.
Error Diffusion: Error Diffusion is a type
of Halftone. Error Diffusion gives good
image texture and makes text in images
more readable than Halftone.
Halftone Image
4-9
Summary of Contents for DF-1004S
Page 1: ...Color Image Scanner User s Manual Regulatory model DF 1015S DF 1004S Avision Inc ...
Page 32: ...Error Diffusion Image 4 10 ...
Page 35: ...User s Manual Normal Photo Document Threshold 230 Normal Photo Document Threshold 230 4 13 ...
Page 46: ...The Compression tab dialog box 4 24 ...
Page 48: ...The Color Dropout dialog box 4 26 ...
Page 50: ...Remove Blue Threshold 20 Background 255 Remove Blue Threshold 20 Background Level 210 4 28 ...
Page 64: ...Detection Area Outside the Range Box Top 3 Bottom 7 4 42 ...
Page 115: ...User s Manual ADF Roller ADF Pad ADF Release Button 9 3 ...
Page 116: ...9 4 ...
Page 119: ...User s Manual 3 Hold the roller and slightly move it forward to detach the roller 9 7 ...