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Dots per inch

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Definition Edit

Dots per inch (DPI) is

[a] measure of the resolution of scanners, printers, and graphic displays. The more dots per inch, the more detail can be displayed in an image.[1]

Overview Edit

A typical CRT screen provides 96 dpi, which provides 9,216 dots per square inch (96x96). When a paper document is scanned, the resolution, or level of detail, at which the scanning was performed is expressed in DPI. Typically, documents are scanned at 200 or 300 DPI.

References Edit

  1. Wiki.GIS.com, GIS Glossary (full-text).

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