Patent ID: 7808676

Claim:
A method for converting polarized color measured values to unpolarized color measured values or vice versa, the method comprising the following steps: carrying out the conversion of the polarized color measured values to unpolarized color measured values or vice versa with a computer by using a pair of reference measured values determined in polarized and unpolarized form; storing at least one pair of reference measured values including polarized and unpolarized measured values and belonging to a color measurement at a first layer thickness, in a computer connected to a color measuring device; carrying out an unpolarized or polarized color measurement on a printing material at a second ink layer thickness, by using the color measuring device; calculating, in relation to a thus registered color measured value, a color measured value of the same type lying on a common coloring line and belonging to the first layer thickness, by using a color model; calculating a color error of the calculated measured value in relation to the stored measured value of the same type of the stored pair of measured values; calculating, in relation to the color measured value of the other type of the stored pair of measured values, the associated color measured value lying on the same coloring line and belonging to the second layer thickness, by using the color model; and correcting the associated color measured value lying on the same coloring line and belonging to the second layer thickness by the previously calculated color error.