Linear interpolator for color correction

Details Linear interpolator for color correction Linear interpolator for color correction

1979-07-03

1981-06-23

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

G03F 308

Patent

active

042754135

ABSTRACT:
A linear interpolating method and apparatus for color signals in a memory of a picture reproducing machine, wherein the stored signals are addressed in a three-dimensional fashion and a cubic interpolation unit in the memory is dissected into tetrahedra. It is determined which of these tetrahedra contains the interpolation point, and then the value at that point is interpolated from the known values at the vertices of the tetrahedron, using a certain method of linear interpolation. An apparatus is described for carrying out the method.

REFERENCES:
patent: 3875587 (1975-04-01), Pugsley
patent: 3893166 (1975-07-01), Pugsley

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