Avision AV620C - Manual (Page 21)

4-3
Image Type
AV620C provides five image types as explain in
below:
Line art
Error Diffusion
Scanning Source Halftone
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.