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Image filing system for protecting partial regions of image data of a document

  • US 5,235,681 A
  • Filed: 12/19/1991
  • Issued: 08/10/1993
  • Est. Priority Date: 06/22/1988
  • Status: Expired due to Term
First Claim
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1. An image processing method in an image filing system having input means for inputting image data, said image data represents characters and figures of a document, display means having a display screen for displaying said image data, and storage means for recording said image data, the method comprising the steps of:

  • inputting through said input means a piece of image data representative of a piece of a document which is no larger than the amount of image data capable of being displayed at one time on said display screen;

    displaying on said display screen said piece of image data;

    defining, on said display screen, a partial region within said piece of image data which represents a region of said document where secret image data is to be located;

    assigning a specific code to said partial region;

    recording said piece of image data with said specific code in said storage means;

    reading said piece of image data with said specific code from said storage means in response to a read command and a code inputted by an operator;

    comparing said specific code assigned to said partial region of said piece of image data with said code inputted by the operator; and

    displaying said piece of image data representing a piece of said document and inhibiting the display of said secret image data in said partial region of said piece of image data representing a region of said document on the display screen when said specific code recorded in the storage means and said code inputted by the operator do not coincide.

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