Specifications

Glossary
Glossary-3
in-place operation An operation whose output image is one of the
input images. See out-of-place operation.
linear filtering In this library, either neighborhood averaging
(blur) or 2D convolution operations.
linear image transforms In this library, the fast Fourier transform (FFT)
or the discrete cosine transform (DCT).
luminance A measure of image intensity, as perceived by a
“standard observer”. Since human eyes are more
sensitive to green and less to red or blue,
different colors of equal physical intensity make
different contribution to luminance. See
ColorToGray in Chapter 9.
LUT Acronym for lookup table (palette).
LUV A three-channel color model designed to acieve
perceptual uniformity, that is, to make the
perceived distance between two colors
proportional to the numerical distance.
MMX
TM
technology A major enhancement to the Intel Architecture
aimed at better performance in multimedia and
communications applications. The technology
uses four new data types, eight 64-bit MMX
registers, and 57 new instructions implementing
the SIMD (single instruction, multiple data)
technique.
monadic operation An operation that has a single input image. It
can have other input parameters as well.
morphological operation An erosion, dilation, or their combinations.
MSI Acronym for multi-spectral image. An MSI can
use any number of channels and colors.
non-linear filtering In the Image Processing Library, minimum,
maximum, or median filtering operation.
opacity channel See alpha channel.
out-of-place operation An operation whose output is an image other
than the input image(s). See in-place operation.