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DETECTING AND CORRECTING SKEW IN REGIONS OF TEXT IN NATURAL IMAGES

  • US 20130195376A1
  • Filed: 01/23/2013
  • Published: 08/01/2013
  • Est. Priority Date: 01/26/2012
  • Status: Active Grant
First Claim
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1. A method to determine skew in an image of a scene in real world, the method comprising:

  • computing a plurality of values of an indicator of skew in a plurality of regions in the image;

    wherein each region in the plurality of regions comprises a plurality of pixels that are contiguous with one another and the region comprises a local extrema of intensity in the image;

    determining whether skew of the image is unacceptable, by applying a predetermined test to the plurality of values of the indicator; and

    requesting user input to correct skew of the image, in response to skew being found to be unacceptable by the determining;

    wherein one or more of the computing, the determining, and the requesting are performed by at least one processor coupled to a memory.

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