Editing Colors of noise (section)

===Noisy black===

In [[telecommunication]], the term '''noisy black''' has the following meanings:<ref>{{cite web|url=https://www.its.bldrdoc.gov/fs-1037/dir-024/_3569.htm|url-status=dead|archive-url=https://web.archive.org/web/20210608074217/https://www.its.bldrdoc.gov/fs-1037/dir-024/_3569.htm|archive-date=8 June 2021|title=Definition: noisy black|website=its.bldrdoc.gov}}</ref>
* In [[Fax|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.
* 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 non-black spots on the display surface or [[record medium]].