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Method and apparatus for applying a function to a localized area of a digital image using a window

  • US 5,596,346 A
  • Filed: 02/06/1996
  • Issued: 01/21/1997
  • Est. Priority Date: 07/22/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of applying an artifact removal function to a source image, comprising:

  • a. scanning a photograph to capture the source image thereon at a first resolution;

    b. subsampling the captured source image based on a variable size view port positioned on the source image to produce a first subsampled image at a second lower resolution and displaying the first subsampled image as defined by the view port with the subsampled image filling a fixed size display window on and smaller than a touch screen display;

    c. allowing an operator to touch the window to indicate a location of an artifact in the image;

    d. automatically adjusting a size of the view port by a predetermined amount and adjusting a position of the view port responsive to the touch indication;

    e. sampling the image within the adjusted size and position view port to produce a second subsampled image and displaying the second subsampled image filling the window;

    f. repeatedly performing steps c-e as initiated by the operator;

    g. allowing the operator to touch an area adjacent to the window to indicate the subsampled image is ready to have the correcting function applied;

    h. determining coordinates of the window within the source image;

    i. detecting the artifact within the source image in a region defined by the coordinates and automatically applying the artifact removal function to remove the artifact in the image and only to a portion of the source image designated by the coordinates;

    j. allowing the operator to initiate performance of steps a-e to view an effect of the function relative to the image; and

    k. printing the image.

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