Glossary
IMAQ Vision for LabWindows/CVI User Manual
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CLUT
Color lookup table. Table for converting the value of a pixel in an image
into a red, green, and blue (RGB) intensity.
color images
Images containing color information, usually encoded in the RGB form.
color location
The technique that locates a color template in a color image based on only
the color information.
color matching
The technique that compares the color information in an image or region of
an image to the color information in another image or region of an image.
color pattern matching
The technique that locates a color template in a color image based on both
the color information and grayscale pattern in the template.
color space
The mathematical representation for a color. For example, color can be
described in terms of red, green, and blue; hue, saturation, and luminance;
or hue, saturation, and intensity.
complex image
Stores information obtained from the FFT of an image. The complex
numbers that compose the FFT plane are encoded in 64-bit floating-point
values: 32bits for the real part and 32bits for the imaginary part.
connectivity
Defines which of the surrounding pixels of a given pixel constitute its
neighborhood.
connectivity-4
Only pixels adjacent in the horizontal and vertical directions are considered
neighbors.
connectivity-8
All adjacent pixels are considered neighbors.
contrast
(1) A constant multiplication factor applied to the luma and chroma
components of a color pixel in the color decoding process.
(2) The difference between light and dark intensity values in an image.
convex function
Computes the convex regions of objects in a binary image.
convex hull
The smallest convex polygon that can encapsulate a particle.
convolution
See
.
convolution kernel
2D matrices (or templates) used to represent the filter in the filtering
process. The contents of these kernels are a discrete two-dimensional
representation of the impulse response of the filter that they represent.
