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Methods and systems for identifying the orientation of a digital image

  • US 8,023,770 B2
  • Filed: 05/23/2008
  • Issued: 09/20/2011
  • Est. Priority Date: 05/23/2008
  • Status: Expired due to Fees
First Claim
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1. A method for determining the orientation of an image, said method comprising:

  • a) determining a best match value, wherein said best match value comprises a match measure and an associated best-match orientation;

    b) comparing a first connected-component object from an image to each numeral template in a first plurality of numeral templates, wherein said first plurality of numeral templates corresponds to a first orientation;

    c) comparing said first connected-component object to each numeral template in a second plurality of numeral templates, wherein said second plurality of numeral templates corresponds to a second orientation;

    d) updating said best match value based on said comparing a first connected-component object from an image to each numeral template in a first plurality of numeral templates and said comparing said first connected-component object to each numeral template in a second plurality of numeral templates;

    e) incrementing a first match counter, wherein said first match counter is associated with said first orientation, when said best-match orientation is said first orientation;

    f) incrementing a second match counter, wherein said second match counter is associated with said second orientation, when said best-match orientation is said second orientation; and

    g) selecting an image orientation for said image based on said first match counter and said second match counter.

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