57
Antares-PJ1Training
Slide 57
Terms and Definitions - 7
Contrast
In general, this is the ratio between the bright and
dark parts of an image. A high contrast gives a
clear image. A projector with an internal light
source is unaffected by external light sources
gives a high contrast image that is clear.
Jitter, Flickering
Jitter is noise in the image that is mainly caused
by temporary fluctuations in the movement of
rotating components, such as the motors that
drive the heads in a VCR unit. The effects can be
seen on vertical lines in the image.
Flickering of the image also can occur.
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