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Data processing apparatus and method, and storage medium

  • US 6,707,465 B2
  • Filed: 02/08/2001
  • Issued: 03/16/2004
  • Est. Priority Date: 02/09/2000
  • Status: Expired due to Fees
First Claim
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1. A data processing apparatus comprising:

  • holding means for holding image data having additional information embedded as a digital watermark;

    detection means for detecting time information related to the image data; and

    change means for changing an embedding scheme for the additional information as the digital mark, from an invisible watermarking scheme to a visible watermarking scheme, on the basis of the time information detected by said detection means.

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