×

Multicolorant process control

  • US 5,857,063 A
  • Filed: 03/27/1997
  • Issued: 01/05/1999
  • Est. Priority Date: 03/27/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. A computer product for controlling a color-reproduction process employing N colorants, where N is greater than 3, comprising:

  • a computer readable storage medium having a computer program stored thereon for performing the steps of;

    defining a first transformation from an N-dimensional colorant-signal space associated with the color-reproduction process to a 3-dimensional colorimetric space such that each combination of N colorant signals is mapped to a visual color that would be produced by the process in response to that combination of signals;

    defining a second transformation for mapping from a 3-dimensional parameter space into the N-dimensional colorant-signal space for defining a particular 3-dimensional subspace of the N-dimensional colorant-signal space for ultimately restricting the permitted combinations of the N colorant signals;

    combining the first and second transformations for defining a third transformation for transforming data directly from the 3-dimensional parameter space to the 3-dimensional colorimetric space; and

    finding the mathematical inverse of the third transformation for defining an inverse transformation which transforms data from the 3-dimensional colorimetric color space to the 3-dimensional parameter space.

View all claims
  • 10 Assignments
Timeline View
Assignment View
    ×
    ×