Automatic image enhancement using computed predictors
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United States of America Patent
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Apr 20, 2010
Grant Date -
Dec 20, 2007
app pub date -
Aug 18, 2006
filing date -
Jun 14, 2006
priority date (Note) -
Expired
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Abstract
A method and apparatus for enhancing electronic images allows for improved characteristics between light areas and dark areas, and is particularly effective for backlit images. A transition between light and dark image portions is detected. A determination is made from an analysis of spectral distributions as to whether an image portion is backlit. Upon detection, image data is adjusted to lighten or darken image portions to allow for improved image viewing. Use of cumulative probability distribution data associated with an electronic image facilitates isolation of backlit image portions and object image portions.
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