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System and method for multi-resolution sharpness transport across color channels

  • US 9,697,588 B2
  • Filed: 11/15/2010
  • Issued: 07/04/2017
  • Est. Priority Date: 11/15/2010
  • Status: Active Grant
First Claim
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1. An image sharpening method comprising:

  • capturing an image;

    decomposing, by an image system, the image into a plurality of image-representation components;

    transforming, by the image system, each image-representation component of the plurality of image-representation components to obtain an unsharpened multi-resolution representation for each image-representation component, wherein a multi-resolution representation comprises a plurality of transformation level representations;

    transporting, by the image system, sharpness information from an unsharpened transformation level representation of a first one of the plurality of image-representation components to a same transformation level representation of an unsharpened multi-resolution representation of a second one of the plurality of image-representation components to create a sharpened multi-resolution representation of the second one of the image-representation components, wherein the transported sharpness information modifies sharpness information in the same transformation level representation of the unsharpened multi-resolution representation of the second one of the plurality of image-representation components;

    transforming, by the image system, the sharpened multi-resolution representation of the second one of the plurality of image-representation components to obtain a sharpened image; and

    displaying the sharpened image on a display device.

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