Avision AV8000S - Manual (Page 26)

5-5
Halftone
In addition to the black and white display,
Halftone simulates gray scale by using
different size of dots. Particularly when you
view the image at a certain distance, it looks very
closely like a gray image yet it consumes the least
disk space. Halftone is the picture that we usually
see in newspapers or magazines. Since Halftone is
one type of black and white image, the disk space
required to save a halftone image is 1/24 of that
required to save a 24-bit true color image.
Halftone Image