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Glossary
© National Instruments Corporation
G-5
luma
The brightness information in the video picture. The luma signal amplitude
varies in proportion to the brightness of the video signal and corresponds
exactly to the monochrome picture.
varies in proportion to the brightness of the video signal and corresponds
exactly to the monochrome picture.
luminance
See
.
LUT
Lookup table. Table containing values used to transform the gray-level
values of an image. For each gray-level value in the image, the
corresponding new value is obtained from the lookup table.
values of an image. For each gray-level value in the image, the
corresponding new value is obtained from the lookup table.
M
M
(1) Mega, the standard metric prefix for 1 million or 10
6
, when used with
units of measure such as volts and hertz (2) Mega, the prefix for 1,048,576,
or 2
or 2
20
, when used with B to quantify data or computer memory.
MB
Megabyte of memory.
Mbytes/s
A unit for data transfer that means 1 million or 10
6
bytes/s.
memory buffer
See
memory window
Continuous blocks of memory that can be accessed quickly by changing
addresses on the local processor.
addresses on the local processor.
MSB
Most significant bit.
MTBF
Mean time between failure.
mux
Multiplexer. A switching device with multiple inputs that selectively
connects one of its inputs to its output.
connects one of its inputs to its output.
N
NI-IMAQ
Driver software for National Instruments IMAQ hardware.
noninterlaced
A video frame where all the lines are scanned sequentially, instead of
divided into two frames as in an interlaced video frame.
divided into two frames as in an interlaced video frame.