Noisy black Guide, Meaning , Facts, Information and Description

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

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

Source: from Federal Standard 1037C

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