×

System and method of determining a reference value for the intensity associated with a color indication variable obtained by scanning an original with a color scanning unit

  • US 5,400,153 A
  • Filed: 07/24/1992
  • Issued: 03/21/1995
  • Est. Priority Date: 07/26/1991
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of determining a reference value for the intensity associated with a color indication variable, obtained by scanning an original with a color scanning unit, the color scanning unit being adapted to scan said original point-by-point, said method comprising determining a locally valid reference value for each scanned point and for each associated color indication variable, provided the intensity value related thereto deviates from a defined standard value by less than a preset value, by adapting, starting from the data concerning the then locally available reference value, said locally available reference value, using a fraction of the value representing the intensity in the case of the color indication variable concerned.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×