Nikon LS-3500 - LS-3510 - Manual (Page 85)

Glossary 8-13
Software Reference for Scanners
stage the moving platform used to mount the slide mount
holder for the Nikon scanner.
subsampling the process of reducing the number of discrete pixels
in an image by throwing certain ones away or
averaging several together to form a single one.
tone wedge jump posterization caused by having too few bits to
represent the number of tones needed in an image.
vector conversion the conversion of information from scalar to vector.
Vector information is defined as having magnitude
and direction. In other words, a point in space can be
defined in a Cartesian coordinate system, and there
is a vector specifying that location in space. In
imaging, we can convert a pixel from a value at a
particular x, y location, to a vector number which
defines its magnitude as well as its spatial location in
one number. This system is used extensively to
mathematically represent randomly shaped objects
so that computers can “draw” them. Mostly for
bitmapped images like typefaces and logos, where
the values do not vary beyond bi-level (high contrast
black and white).