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Apparatus and method for implementing dilation and erosion transformations in digital image processing

  • US 4,665,554 A
  • Filed: 07/13/1983
  • Issued: 05/12/1987
  • Est. Priority Date: 07/13/1983
  • Status: Expired due to Fees
First Claim
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1. A method of manipulating an input digital representation of an image made up of a matrix of points by a dynamically selectable structuring element to produce an output digital representation, said method comprising:

  • processing the input digital representation through a plurality of sequential stages, each stage including;

    selectively shifting the digital representation inputted to the stage; and

    operating on the representation inputted to the stage and the representation shifted by the stage to produce a digital representation outputted by the stage; and

    control means for dynamically selecting the shift provided by each shifting step, whereby the input digital representation can be sequentially shifted in a dynamically selectable pattern corresponding to a selectable structuring element.

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