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Term Glossary 3
Destination
A set of resolution and calibration settings that match the
characteristics of the scan to the final output device. EPSON
TWAIN provides several predefined Destination settings that
allow you to adjust your scanned image to suit the output device
you intend to use. You can also define your own Destination
settings.
Device
A piece of computer equipment that performs a specific task,
such as a disk drive, a monitor, a printer, or a scanner. Also
called a peripheral.
Device Driver
A file containing instructions that allow your computer to
recognize and control a device (such as a monitor, printer, or
scanner).
DIB
Device-Independent Bitmap. A graphics file format for
Windows version 3.0 or later. Four-bit/pixel images can be
exported with RLE4 compression and 8-bit/pixel images can be
exported with RLE8 compression.
Dithering
A process in which software or an output device simulates
continuous tones with repeating patterns of dots.
DPI
Dots per inch. A unit of measurement for resolution. The higher
the value, the higher (finer) the resolution.
Draft & fast
An EPSON TWAIN setting that provides faster scanning at a
lower resolution.
Dropout
An EPSON TWAIN option that lets you instruct your scanner to
ignore a color.