Lloyd I Walker

US Patent:

41692853, Sep 25, 1979

Filed:

Dec 7, 1977

Appl. No.:

5/858524

Inventors:

Lloyd R. Walker - Houston TX

Assignee:

Sefel J. & Associates Inc. - Houston TX

International Classification:

G06F 1520

US Classification:

364518

Abstract:

A method is described wherein quantifiable data which have arbitrary dynamic ranges and which vary as a function of other parameters are represented in color. A set of subranges, without restriction in number, representing data properties are associated with a color set in such a way that the colors are perceived to be maximally differentiable by interpreters, whether human, electronic, or other, by specifically incorporating information concerning the normal or anomalous characteristics of the interpreter's color perception when determing the color set. The method further provides for the realization of color displays by directly associating the colors with densities, transmittances, or illumination levels for negatives, positives, or colored light emitting devices, whether the realization requires primary additive or primary subtractive hues.