Epson 600 User Manual page 68

Glossary
Grayscale An image composed of varying shades of gray. The
EPSON scanner driver supports 256 shades of gray.
lpi Lines per inch is a measure of resolution used by service
bureaus and professional printers .
Midtones The middle range of tones in an image, lighter than the
shadows and darker than the highlights.
Pixel A small point of light (on a monitor) or ink (on a printed
image) that makes up the basic unit of the image.
Prescan Area The area in the EPSON Perfection 600 main window
where the item to be scanned can be previewed.
Resolution The amount of detail in an image, as measured in dots
per inch (dpi) or dots per centimeter (dpcm)
RGB Refers to red, green, and blue, the basic colors used to
create all other colors on a monitor.
Page 61