Method of simply setting expansion regions for conversion of val

Details Method of simply setting expansion regions for conversion of val Method of simply setting expansion regions for conversion of val

1984-04-06

1986-11-04

McGraw, Vincent P.

Optics: measuring and testing

By shade or color

364526, G01T 352

Patent

active

046207929

ABSTRACT:
A method of expanding the regions in which conversion of color values in the CIE notation system to values in the Munsell notation system can be made. On a conventional Munsell chromaticity diagram having equi-hue lines and equi-chroma loci and superimposed on a CIE set of coordinates in a conventional conversion diagram, the respective equi-hue lines are extended outwardly from the outermost equi-chroma locus in a direction in alignment with respective lines connecting the respective intersections of the outermost equi-chroma locus with the respective equi-hue lines and the intersections of the next inward equi-chroma locus with the respective equi-hue lines, the extension being to points along the extended equi-hue lines which are integral multiples of a value d which is equal to .sqroot.(x.sub.1 -x.sub.2).sup.2 +(y.sub.1 -y.sub.2).sup.2 where x.sub.1 and y.sub.1 are the CIE notation values of the points of intersection of the respective equi-hue lines and the outermost equi-chroma locus, and x.sub.2 and y.sub.2 are the CIE notation values of the points of intersection of the respective equi-hue lines and the next inward equi-chroma locus. The points along the extended equi-hue lines are joined with corresponding points on adjacent equi-hue lines to form further equi-chroma loci outwardly of the outermost equi-chroma locus.

REFERENCES:
Harris et al, "Color Technology and Its Applications in Industry," Diano Corporation, 1970, pp. 11-18.
Wright, "The Measurement of Color," 4th edition, 1969, Adam Hilger Ltd., pp. 168-169 & pp. 183-193.
Billmeyer et al, "Principals of Color Technology", 2nd edition, 1981 John Wiley & Sons, Inc. pp. 40-61.

Affiliated with

Also associated with

Rating

Method of simply setting expansion regions for conversion of val does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of simply setting expansion regions for conversion of val, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of simply setting expansion regions for conversion of val will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-695058