Blue sky color detection technique
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United States of America Patent
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Jan 8, 2013
Grant Date -
Nov 11, 2010
app pub date -
May 8, 2009
filing date -
May 8, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
An image enhancement technique includes a filter that receives an input image and provides a low-pass filtered image that maintains a substantial number of edges therein. The low pass filtered image is provided a likelihood of being a sky color for each pixel of the low pass filtered image. The low-pass filtered image is filtered based upon a user selection to selectively enhance the sky color. The low-pass filtered image and the filtered low-pass filtered image are blended based upon the user selection based upon the likelihood. The blended image is combined with a high pass filtered input image to provide an enhanced image.
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Cited Art Landscape
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