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Image encryption/decryption apparatus, method and program

  • US 20090323950A1
  • Filed: 05/29/2008
  • Published: 12/31/2009
  • Est. Priority Date: 05/30/2007
  • Status: Active Grant
First Claim
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1. An image encryption apparatus that encrypts a digital image, the image encryption apparatus comprising:

  • an encryption region specifying unit that specifies a partial region to be encrypted from the digital image;

    an image conversion unit that converts the partial region selected by the encryption region specifying unit into a processing image based on an encryption key; and

    a pixel value conversion unit that generates a conversion image by regularly converting a pixel value of the processing image converted to specify a position of the partial region.

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