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crop
To eliminate portions of an image from the final scan.
d
default settings
Predetermined settings in the scanning software that define levels on the your behalf. Default settings in the HP Precisionscan Pro software are set for Output Type, Output Resolution, Color, Exposure, Black & White Threshold, and Sharpen Level. You can override default settings.
density
The ability of a material to absorb or transmit light. The greater the density of a material or object, the more black it contains. This applies to both
descreen
The process of removing an unwanted pattern, such as a moiré pattern, that appears in a printed original so the pattern does not appear in the scanned image.
destination
The file, program, or hardware device where the scanned image will be used. Examples include a printer, a Web page, or an
device driver
Software that the system uses to communicate with devices, such as a display, printer, mouse, or scanner.
Glossary 121
display resolution
The number of pixels that a computer monitor can display both horizontally and vertically. Screen resolutions are typically 640 x 480 (VGA), 800 x 600 (super VGA), or 1024 x 786.
dithering
The process of approximating pixel colors when reducing the color depth of an image. Dithering can improve transitions between colors when reducing a
dock
To attach a tool window to the main program window.
document
For the purposes of this documentation, document refers to an original item containing text or both text and images. It also means an original item scanned using the automatic document feeder.
dots per inch
See dpi.
To press and click a mouse button twice in rapid succession.
dpi
Dots Per Inch. The number of dots in a linear inch. DPI measurements are used to describe the resolution of printers and scanners, where printed images and words are made up of a series of round dots. The greater the DPI number, the higher the resolution.