Patent ID: 8548236
Filing Date: 2013-10-01
Classification: G01J,G06K,H04N

Abstract:
1. A method for creating a standard definition for a color comprising: providing a source of a color; measuring a set of spectral values for the color stimuli associated with the color with a spectral measurement device controlled by a digital processing system; defining a first set of human observer color matching functions defined by matching saturated colors; calculating a first set of tristimulus values from the spectral values and from the first set of human observer color matching functions; calculating the approximate magnitude of saturation of said color from said first set of tristimulous values; defining a second set of human observer color matching functions defined by matching whites; defining a third set of human observer color matching functions defined by performing a weighted combination of the first and second set of color matching functions, wherein the magnitude of the weighting factor for the first set of human observer functions increases with the magnitude of said estimated saturation and the weighting factor of the second set of human observer functions decreases with the magnitude of said estimated saturation; calculating a second set of tristimulus values from the spectral values and from the third set of human observer color matching functions; transferring the second set of tristimulous values to a destination device, wherein the destination device displays, stores, or otherwise communicates the tristimulous values in order to define the color.