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h
halftone
An original composed of a pattern of dots that tricks the eye into seeing
shades of gray or color. Halftones are common in all printed materials.
Scanning halftones instead of photographic originals can result in
lower final image quality.
height
The vertical dimension of a scan as it will appear at its destination.
highlights
The lightest portion of an image, usually reproduced as white on the
computer screen or when printed.
histogram
A graphical representation of the concentration of pixels at each
intensity or gray level in the selection area of the scanned image.
Histograms help determine the optimal highlight, shadow, or threshold
value of an image.
HP ScanJet Copy Utility
The software used to select number of copies, destination printer, and
other copy options after a user selects the Copy option on the scanner.
HP PrecisionScan Pro software
The scanning software that HP provides for previewing an image
before sending it to a destination; making changes, such as resolution,
resizing, and contrast; and saving images as files.
HP ScanJet Plug-in
A Photoshop plug-in for image editor and OCR programs, which allows
you to scan text and images from within these programs.
HP Scanning Software
The name of the scanner button that starts the HP PrecisionScan Pro
software. See also HP PrecisionScan Pro software.
HP Share-to-Web
An automated feature that sends scanned images directly to a
destination on the Web. Links are available only in English.
HTML
HyperText Markup Language. A language used in creating documents
for the World Wide Web. Documents can be saved in HTML.
hue
The distinctive characteristic of a visible color that enables you to
distinguish it from other colors. Six hues are especially important in
photography, scanning, and printing: red, yellow, green, cyan, blue,
and magenta. Hue is determined by the frequency of the wave of light
that creates the color. See also saturation.
i
image
An electronic picture that can be displayed on a computer screen or
saved to a disk.
