Avision AV6240 - Manual (Page 25)

4-5
Gray (256 levels gray scale)
Scanner recognizes each point in the image as a
shade of gray (continuous tone). 8-bit gray gives
more detailed information about the image.
256 Color
256 Color presents 256 colors in a color image.
True Color (16.7 million colors)
Color image have continuous tones along with its
color hues.