Method for correctly identifying hair color
AssigneeChromatics Color Sciences International, Inc.
InventorsDarby Simpson MacFarlane, David Kenneth MacFarlane, Fred W. Billmeyer, Jr.
Life of this patent
Estimating the term…
Abstract
Methods and apparatus for determining accurate hair color classificatinos and appropriate coloring agents to bring about a selected change of color include a table of hair color classifications, a color measuring instrument to arrive at Hunter L, a and b values for use in identifying a particular classification from the table and a database that identifies appropriate coloring agents based on a selection of coloring actions from a menu and the classifications of hair color.
Claims17
A process for analyzing the hair color of a subject, said process comprising the steps of:
- (a) measuring with a measuring instrument a value of a first color factor in the coloration of said subject's hair, said first color factor being dependent on lightness of the coloration of said subject s hair;
- (b) measuring with a measuring instrument a value of at least one further color factor in the coloration of said subject's hair, said farther color value being dependent on the relative content of opponent colors in the coloration of said subject's hair;
- (c) wherein steps (a and (b) comprise arriving at values of said first color factor and said at least one further color factor that correlate to preestablished ranges of values of said color factors and that further correlate to measures of preestablished ranges of hair coloration;
- and
- (d) comparing the measured values of said first color factor and said at least one further color factor with said preestablished ranges of values of said color factors, to determine where within said ranges the measured values of said color factors lie.
The process according to 1 or 2, wherein the color factors are selected from at least two of a color factor which is substantially that of color factor Hunter L, a color factor which is substantially that of color factor Hunter b and a color factor which is substantially that of color factor Hunter a.
Dependencies are inferred from the claim text.