×

Signal intensity range transformation apparatus and method

  • US 7,321,699 B2
  • Filed: 09/08/2003
  • Issued: 01/22/2008
  • Est. Priority Date: 09/06/2002
  • Status: Expired due to Fees
First Claim
Patent Images

1. An apparatus providing an image output signal in response to an image input signal, the device comprising:

  • a saturation bias identification circuit having a range of useful grey-levels output responsive to the image input signal; and

    a cumulative distribution function scaling circuit having a scaled output responsive to the useful grey-levels output,wherein the range of useful grey-levels output includes all grey-levels within a cumulative distribution function except the first unsaturated grey-level within the cumulative distribution function and the last unsaturated grey-level within the cumulative distribution function.

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