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Image processing apparatus, image forming apparatus, information embedding method, and information embedding program

  • US 20010028727A1
  • Filed: 03/30/2001
  • Published: 10/11/2001
  • Est. Priority Date: 03/30/2000
  • Status: Active Grant
First Claim
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1. An image processing apparatus comprising:

  • a detecting unit that detects all pieces of additional information that are embedded in image data;

    an analyzing unit that analyzes the detected pieces of additional information and judges whether any of the detected pieces of additional information includes predetermined information that is updateable; and

    an embedding unit that (1) updates, when a judgment result of the analyzing unit is affirmative, the predetermined information included in the piece of additional information, and embeds the updated predetermined information into the image data at a location where the predetermined information is originally embedded, and (2) embeds, when the judgment result of the analyzing unit is negative, a new piece of additional information including updated information into the image data at a location that does not overlap locations where the detected pieces of additional information are embedded, the updated information being equivalent to the predetermined information.

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