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Method of preventing falsification of image

  • US 20020051577A1
  • Filed: 10/19/2001
  • Published: 05/02/2002
  • Est. Priority Date: 10/20/2000
  • Status: Abandoned Application
First Claim
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1. A method of preventing falsification of an image of a produced image produced in an imaging apparatus, comprising the steps of:

  • extracting a first image characteristic amount by a specified algorithm from said produced image in said imaging apparatus;

    recording identification information of said produced image in said imaging apparatus and said first image characteristic amount into a database of an authentication section which authenticates a status that there is no falsification in said produced image;

    regarding as an authentication object image whose authentication is requested to said authentication section, extracting a second image characteristic amount by said specified algorithm from said authentication object image;

    comparing said first image characteristic amount with said second image characteristic amount, in which said extracted authentication data and said authentication data recorded in said database have the same identification information,; and

    judging whether or not said authentication object image is falsified after said image production, based on consistency between said first and second image characteristic amounts acquired from said comparison in order to prevent said falsification of said produced image based on said judgment.

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