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HP 7400C Series User Manual

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control range

This range determines the number of bits used for exposure
compensation, shadow detail, and black-and-white threshold
adjustment displays. The higher the bit depth the finer the level of
control in adjusting these image manipulation functions.

crop

To eliminate portions of an image from the final scan.

custom settings

Saving settings allow users to save a set of settings used with one
scanned image and reuse the settings with an image scanned in the
future.

d

default settings

Predetermined settings in the scanning software that define levels on
the behalf of the user. Default settings in the HP PrecisionScan Pro
software are set for Output Type, Output Resolution, Color, Exposure,
Black & White Threshold, and Sharpen Level. Users 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 black-and-white images and color images.

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 e-mail program.

device driver

Software that the system uses to communicate with devices, such as a
display, printer, mouse, or scanner.

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 24-bit image to 8-bit format.

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.