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Analyzing an image showing editing marks to obtain category of editing operation

  • US 5,659,639 A
  • Filed: 11/24/1993
  • Issued: 08/19/1997
  • Est. Priority Date: 11/24/1993
  • Status: Expired due to Term
First Claim
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1. A method comprising:

  • obtaining input image data defining an input image set that shows a first graphical feature and editing marks indicating an editing operation to be performed on the first graphical feature;

    the first graphical feature and the editing marks together forming a node-link structure that includes first and second nodes and a link extending between the first and second nodes;

    the first node including the first graphical feature;

    the second node including information about the editing operation;

    the first and second nodes satisfying a constraint on nodes;

    the link satisfying a constraint on links; and

    the node-link structure satisfying a constraint on node-link structures;

    applying the constraint on nodes, the constraint on links, and the constraint on node-link structures to the input image data to obtain constrained node-link data indicating the first and second nodes and the link;

    using the constrained node-link data to obtain link type data indicating whether a part of the input image set meets a link type criterion;

    using the link type data to obtain operation category data;

    the operation category data indicating information about the editing operation; and

    using the operation category data to obtain output image data defining an output image;

    the output image including a version of the input image set in which the editing operation has been performed on the first graphical feature.

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