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Method and system for reproducing natural image

  • US 5,272,543 A
  • Filed: 05/24/1991
  • Issued: 12/21/1993
  • Est. Priority Date: 05/24/1990
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method of progressively reproducing a natural image by successively decoding and displaying data which are stored in memory means in at least three stages, said three stages including display of a retrieval image which is used for giving a general idea of the image, a soft copy image which has a sufficiently high resolution for display on display means and a hard copy image which has a sufficiently high resolution for printing on printer means, said data stored in the memory means including at least retrieval image data which is obtained by coding the natural image, soft copy image data which is obtained by coding a difference of the retrieval image and the soft copy image and hard copy image data which is obtained by coding a difference of the soft copy image and the hard copy image, said method comprising the steps of:

  • (a) decoding the retrieval image data read out from the memory means to display a retrieval image on the display means;

    (b) decoding the soft copy image data and a predetermined part of the hard copy image data read out from the memory means to display on the display means a soft copy image in which a predetermined part thereof is replaced by a hard copy image part which is described by the predetermined part of the hard copy image data;

    (c) decoding the hard copy image data read out from the memory means to display on the display means a hard copy image excluding said hard copy image part; and

    (d) printing the hard copy image on the printer means based on the hard copy image data decoded in said steps (b) and (c).

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