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digital image
digital image An image consisting of data (specifically a set of elements) defined on an n-dimensional regular grid that has the potential for display. These elements are referred to as pixels. The pixels in different images may represent a variety of types of information, such as temperature, pressure, velocity, terrain height, or tissue density. The regular grid is frequently over a two-dimensional space but can be three-dimensional, and even four-dimensional if sampling over time is also included. See also image processing.
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JOHN DAINTITH. "digital image." A Dictionary of Computing. 2004. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. JOHN DAINTITH. "digital image." A Dictionary of Computing. 2004. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O11-digitalimage.html JOHN DAINTITH. "digital image." A Dictionary of Computing. 2004. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O11-digitalimage.html |
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digital image
digital image In remote sensing, an image in which the continuous variation in the scene being sensed is converted to discrete variation in the form of a finite range of integer values (pixels) each assigned a digital number. See also ANALOGUE IMAGE.
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Cite this article
AILSA ALLABY and MICHAEL ALLABY. "digital image." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "digital image." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O13-digitalimage.html AILSA ALLABY and MICHAEL ALLABY. "digital image." A Dictionary of Earth Sciences. 1999. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-digitalimage.html |
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