Gray Balance
An EPSON TWAIN software setting that lets you adjust the grayness of any area of an image. You can remove color casts and discoloration to make the grays in an image more neutral.
Grayscale
The measure of grayness of any area of an image. When an image is scanned, the gray level of each pixel is determined.
Halftone
An image type which simulates grayscale by varying the sizes of the dots printed.
Halftoning
A process of converting continuous tones into digital data so that the output data simulates the tones.
Highlight
The lightest portion of an image.
Image Type
The way an image will be scanned or reproduced. EPSON TWAIN provides Pixel Depth, Halftone, Dropout, and Quality settings to adjust the scanned image you are creating. You can also define your own image type settings.
Interface
The connection between or among computer devices.
JPEG
Joint Photographic Experts Group. JPEG is standard file format for Lossy data compression and is supported by many applications.
Line Art
An image made up of lines and solids with no grays.
Lossy
A data compression system that intentionally discards (or loses) some data from the original image.
Midtone
The tonal value of a dot, located approximately halfway between the highlight value and the shadow value.
Term Glossary 3