Patent ID: 7027186

Claim:
A method for evaluating a reproducibility of a toning sample by CCM, wherein two or more samples are produced in a CCM toning or visual toning process by which colors are adapted to a target color and respective components are registered in a CCM system, comprising: evaluating the reproducibility of the samples based on a difference of spectral reflectance ΔR−n, wherein n denotes a sample number, between spectral reflectance RST−n obtained by measuring the respective samples and spectral reflectance RPR−n obtained by a CCM simulation corresponding to a coloring agent recipe for the sample at a same n; wherein the evaluating is performed based on a difference of color specification value ΔL*a*b* corresponding to the difference ΔR−n or a difference of spectral transmittance ΔT−n, a statistical value including at least one of a maximum, minimum or a standard deviation of the difference of color specification value and a color difference as well as the color difference calculated from the statistical value.