Method of determining color signals for input signals at vertice

Details Method of determining color signals for input signals at vertice Method of determining color signals for input signals at vertice

1994-09-26

1996-05-21

Rogers, Scott A.

Facsimile and static presentation processing

Natural color facsimile

Color correction

358523, 358525, H04N 156, H04N 160

Patent

active

055195156

ABSTRACT:
A color signal determining method comprises steps of: dividing a three-dimensional input color space into a plurality of unit solid figures, each of the solid figures having a set of vertices; determining a plurality of color correction parameters based on input signals at all the vertices; producing a simulator which correlates predetermined color signals with simulated input signals through the color correction parameters; and determining each of first color signals for the input signals at all the vertices by selecting one of the predetermined color signals when a color difference between a color correction parameter relating to one of the input signals at the vertices and a color correction parameter relating to one of the simulated input signals is detected to be smallest among color differences between the above one of the input signals and all the simulated input signals.

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patent: 5390035 (1995-02-01), Kasson et al.
patent: 5398121 (1995-03-01), Kowalewski et al.
patent: 5436739 (1995-07-01), Imao et al.

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