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Photograph printing method

  • US 5,227,837 A
  • Filed: 05/11/1990
  • Issued: 07/13/1993
  • Est. Priority Date: 05/12/1989
  • Status: Expired due to Term
First Claim
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1. A method of determining a print exposure amount to be used for printing an image of an object on a photosensitive material, said method comprising the steps of:

  • reading average brightness information of said object from a recording medium, said average brightness information having been recorded in said recording medium when taking said object image;

    measuring respective points of said object image to obtain photometric values;

    converting the photometric values into brightness information by considering said average brightness information;

    judging as effective pixels such points among said respective points as have the brightness information within a predetermined range; and

    obtaining a characteristic value for calculating said print exposure amount from photometric values of said effective pixels.

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