Multicolorant process control

Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry

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Details

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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