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Back to TOC Glossary 127
original
The original document or picture to be scanned.
output
The file that is generated by the scanning process.
output dimensions
The actual height and width of an image when saved. You will not see
the size changes to your image in the Preview area since image size
affects only the final scan.
output type
The type of file that is generated during the scanning process. Output
type reveals the bit depth of the image.
p
Paintbrush
A bitmap file format (.pcx extension) supported by MS-DOS, Windows,
UNIX, and other platforms, and numerous programs. Paintbrush files
support 24-bit color and can have a maximum image size of 64,000 by
64,000 pixels.
palette
A subset of the color look-up table that establishes the colors that can
be displayed on the monitor at a particular time. The only color depth
that allows multiple palettes is the 256 (or 8-bit) color setting for your
monitor. At a color depth of 256 colors, each program (or even each
individual image used or edited in a program) can have a different
color palette.
palette flashing
The flashing that occurs when your monitor is set to a color depth of
256 colors and you switch programs. When you switch programs, the
palette of the active program becomes the system palette, and all other
programs redraw themselves as accurately as possible with the new
colors.
PC fax program
A program for sending electronic documents to someone’s fax
machine or PC fax program. Also allows receiving of faxed documents
to the computer instead of a fax machine.
pixel
The smallest element (picture element) that can be assigned an
independent color and intensity and can be displayed on a computer
screen. Pixels are square dots arranged in a grid pattern to make up
the images displayed on the screen.
PNG
Portable Network Graphics format. A compressed image file format
suitable for the Web that might replace GIF because of copyright
issues with GIF format. PNG is non-lossy compressed, supports
interlacing, and can be used with the True Color output type, which
GIF cannot.
portrait
Orientation of a photograph or image that is taller than it is wide. An
image that is wider than it is tall is called a landscape orientation.
positioning plate
This XPA piece is a large template with a rectangular cutout that
orients proper placement of the XPA light source on the scanner bed.