Method and apparatus for enhancing a digital image
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United States of America Patent
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Issued Date -
Jun 15, 2006
app pub date -
Dec 13, 2004
filing date -
Dec 13, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A system and method processes original digital numbers (DNs) provided by a satellite imaging system to produce a set of spectral balanced and contrast enhanced multispectral images. Spectral balancing is achieved based on physical characteristics of sensors of the imaging system as well as compensation for atmospheric effects. The DNs in the multispectral bands may be processed using a relatively small amount of processing resources otherwise required to produce such images. Such images may be processed completely automatically and provide relatively easy visual interpretation. Each image pixel may be, for example, in an 8-bit or 16-bit format, and the image may be displayed and/or printed without applying any additional color correction and/or contrast stretches.
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