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Noisy white

In telecommunication, the term noisy white has the following meanings:

In facsimile or display systems, such as television, a nonuniformity in the white area[?] of the image, i.e., document or picture, caused by the presence of noise in the received signal.
A signal or signal level that is supposed to represent a white area on the object, but has a noise content sufficient to cause the creation of noticeable black spots on the display surface or record medium.

Source: from Federal Standard 1037C

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