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Image processing method and apparatus

  • US 6,738,531 B1
  • Filed: 05/10/2000
  • Issued: 05/18/2004
  • Est. Priority Date: 05/10/1999
  • Status: Expired due to Term
First Claim
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1. An image processing method, in which a direction transforming process is performed on an image signal representing an image and in accordance with information giving specifics about an image recording technique, and in which a marker pattern represented by a marker signal is appended to the image represented by the image signal, the method comprising the steps of:

  • determining a direction of the marker signal and an appending position of the marker signal in accordance with the information giving specifics about the image recording technique, and appending the marker signal to the image signal in accordance with the thus determined direction of the marker signal and the thus determined appending position of the marker signal, wherein a size of the marker signal is altered in accordance with a size of the image, which is represented by the image signal, and/or a read-out density, with which the image signal was obtained, wherein, in cases where a signal value of the marker signal and signal values of image signal components of the image signal, which image signal components correspond to the position in the vicinity of the appending position of the marker signal, approximately coincide with each other, the signal value of the marker signal and/or the signal values of the image signal components of the image signal, which image signal components correspond to the position in the vicinity of the appending position of the marker signal, are altered.

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