Avision AV630C - Manual (Page 19)

4-3
4.1. Image Type
AV630C provides five image types as explain in below:
Line art
Error Diffusion
Halftone
Scanning Source Gray
Color
Scanning Source
Two scanning sources are provided- flatbed as
well as transparency.
Line art
Line art presents the image in black and white
only and there are no intermediate shades of gray
in between.
Halftone
In addition to the black and white display,
Halftone can present a somehow gray shade of
image by using different size of dots.
Error Diffusion
While taking up but a minimum storage space,
error diffusion gives good image texture and
excellent image details.
Gray (256 levels gray scale)
Gray presents a 256 shades of gray in an image.