digital number

A Dictionary of Earth Sciences | 1999 | 340 words | Copyright

digital number In remote sensing systems, a variable assigned to a pixel, usually in the form of a binary integer in the range of 0–255 (i.e. a byte). The range of energies examined in a remote sensing system is broken into 256 bins. A single pixel may have several digital number variables corresponding to different bands recorded.

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AILSA ALLABY and MICHAEL ALLABY. "digital number." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>.

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