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Chrominance
Also known as 'C' , this is the component, or pair of components, of a Component Video signal which describes color difference
information.
Color difference
In Component Video signals, the difference between specified colors and the luminance component. Color difference is zero for
monochrome images.
Color gamut
The spectrum of color available to be displayed.
Color temperature
The position along the black body curve on the chromaticity diagram, normally quoted in Kelvin. It takes into account the preset
values for color balance in the service set-up to take up the variations in the prism. The projector allows you to adjust this
temperature (i.e. adjust the picture color temperature).
Component video
A three-wire or four-wire video interface that carries the signal split into its basic RGB components or luminance (brightness) and
two-color difference signals (YUV) and synchronization signals.
Contrast (electronic control)
The adjustment of the white point of the image without affecting the black point. This increases the intensity range of the
displayed image.
Contrast (optical)
The intensity difference between the darkest and lightest areas of the screen.
Cr, Cb
Color difference signals used with 'Y' for digital Component Video inputs. They provide information about the signal color. Not to
be confused with Pr, Pb.
Crop
Remove part of the projected image. Alternatively, fit an image into a frame with a different aspect ratio by removing part of the
image. The image is resized so that either its length or its width equals the length or width of the frame, while the other dimension
has moved outside the frame; the excess area is then cut out.
D
Reference Guide
APPENDIX D: GLOSSARY OF TERMS
Digital Projection Ltd. M-Vision WUXGA Series
Notes
Rev A January 2024
page 129
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