Multicolorant process control

Details Multicolorant process control Multicolorant process control

1997-03-27

1999-01-05

Vu, Kim Yen

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358515, 358518, 358524, 358529, 382162, 382167, 345186, 345199, B41B 1500, B41J 1500, G06F 1500, H04N 146

Patent

active

058570632

ABSTRACT:
A computer product for controlling a color-reproduction process employing N colorants, where N is greater than 3, the computer program product comprises: a computer readable storage medium having a computer program stored thereon for performing the steps of: defining a first transformation from a 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 calorimetric space; finding the mathematical inverse of the third transformation for defining an inverse transformation which transforms data from the 3-dimensional calorimetric color space to the 3-dimensional parameter space.

REFERENCES:
patent: 5072305 (1991-12-01), Numakura et al.
patent: 5285297 (1994-02-01), Rose et al.
patent: 5296935 (1994-03-01), Bresler
patent: 5315380 (1994-05-01), Ingraham et al.
patent: 5615282 (1997-03-01), Spiegal et al.

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