The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 06, 2005
Filed:
Dec. 05, 2002
Celia Charlotte Taylor, Slough, GB;
Peter Mark Spiers, Uxbridge, GB;
Celia Charlotte Taylor, Slough, GB;
Peter Mark Spiers, Uxbridge, GB;
Imperial Chemical Industries PLC, London, GB;
Abstract
A method for obtaining an approximate standard color definition for a sample color () without the need for standard conditions of illumination or observation. The method comprises using color sensing equipment such as a digital camera () to sense under non-standard conditions both the sample color and a plurality of reference colors () each being provided on a template () and each having a known standard color definition. The sensing under non-standard conditions produces a non-standard color definition both for the sample color and for each of the reference colors. The non-standard color definitions of reference colors near in color space to the sample color are compared with the known standard color definitions for the reference colors to obtain correction factors which are then applied to the non-standard color definition of the sample color to convert it to color definition which, though it is only an approximation of the standard color definition, is nevertheless sufficiently close to the true standard color definition to be useful in color matching.