Patent ID: 7688486

Claim:
A computer-implemented method for generating a color profile for a color output device comprising a plurality of single colorant patches printed on a single substrate, the method comprising: instructing the color output device to print a test pattern from an image file; printing, with the color output device, the test pattern comprising a plurality of single colorant patches, one patch for each colorant comprising a solid color patch with 100% colorant and a print job on the same output medium; measuring a spectral response for each of the patches and for the output medium; calculating, with a processor, transmission spectra for each colorant and the output medium by using Beer's law; calculating, with the processor, a spectral response for an overprint combination of a first and a second colorant by multiplying the spectral response for the first colorant by the transmission spectra of the second colorant; calculating, with the processor, a spectral response combination for an overprint combination of the first, the second, and a third colorant by multiplying the spectral response for the first colorant by the transmission spectra of the second colorant and by the transmission spectra of the third colorant; calculating, with the processor, colorimetric values for each patch by using a spectral Neugebauer equation; and transmitting, with the processor, the calculated colorimetric values to profiling software for generation of the color profile for the color output device.