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Apparatus and method for detecting and recognizing character line using simplified projection information

  • US 6,035,064 A
  • Filed: 05/23/1997
  • Issued: 03/07/2000
  • Est. Priority Date: 05/23/1996
  • Status: Expired due to Fees
First Claim
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1. An apparatus for detecting and recognizing a character line using simplified projection information, comprising:

  • means for binarizing an inputted document image so as to output a binarized image;

    means for obtaining a combining component of a black pixel from the binarized image so as to convert the combining component into circumscribed rectangular data;

    means for calculating a function based on position data of the circumscribed rectangular data, the function signifying a temporary simplified projection information of the circumscribed rectangular data;

    means for calculating an accumulation of the function obtained by the means for calculating the function, the accumulation signifying the temporary simplified projection information of all of the circumscribed rectangular data in a line direction; and

    means for detecting the character line on the document image based on the accumulation of the function obtained by the means for calculating the accumulation of the function.

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