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Blue sky color detection technique

  • US 20100284614A1
  • Filed: 05/08/2009
  • Published: 11/11/2010
  • Est. Priority Date: 05/08/2009
  • Status: Active Grant
First Claim
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1. An image enhancement technique comprising:

  • (a) a filter that receives an input image and provides a low-pass filtered image that maintains a substantial number of edges therein;

    (b) filtering said low-pass filtered image to identify pixels of said low pass filtered image to provide a likelihood for said pixels being a sky color;

    (c) filtering said low-pass filtered image based upon a user selection to selectively enhance said sky color;

    (d) blending said low-pass filtered image and said filtered low-pass filtered image based upon said user selection based upon said likelihood;

    (e) combining said blended image with a high pass filtered said input image to provide an enhanced imaged.

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