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thresholding
The process of rendering all areas darker than a set value as black,
and all areas lighter than a set value as white. Useful when converting
grayscale images to black and white.
TIFF
Tagged Image File Format. A bitmapped file format for images,
capable of storing up to 24-bit depth images. TIFF file format is
especially appropriate for scanned images and is supported by many
programs and computers. TIFF files are saved with the filename
extension .tif.
TIFF compressed
Tagged Image File Format, compressed. A bitmapped file format for
images, capable of storing up to 24-bit depth images. TIFF file format
is recommended for scanned images and is supported by many
programs and computers. TIFF compressed files use data
compression to reduce the size of the resulting file. TIFF compressed
files are saved with the filename extension .tif.
tone
The overall effect produced by the combination of lighting, shade, and
color.
toolbar
The area that contains buttons for a program's controls.
ToolTip
A brief description that appears when the mouse pointer pauses over a
control (such as a menu item or toolbar button) in a software program’s
window.
transparency adapter
Abbreviated as XPA. An optional accessory used to scan negatives
and slides. An XPA connector is plugged into the scanner, and a
template is used to position the transparency above the glass.
True Color
An image type that is rendered with 24-bits per pixel per color.
TWAIN
An industry-standard communications protocol for sending instructions
to hardware (such as a scanner) and receiving image data back from
them. If you are using a program that supports TWAIN, you can start
the HP Precisionscan Pro software directly from that program.
u
uniform scaling
A method of stretching or shrinking an image proportionately in both
the vertical and horizontal directions.
USB
Universal Serial Bus. An interface for connecting peripherals, such as
scanners, to a computer.
v
vector
A type of image that uses algebraic equations to define the various
lines and curves of the image.