Patent ID: 7366349

Claim:
A method for profiling film media comprises: providing a frame of film media including a plurality of patches including a first patch, and a second patch, wherein the first patch is exposed to a first RGB color combination, and wherein the second patch is exposed to a second RGB color combination; providing an illumination source configured to output a beam of light; separating the beam of light into a beam of light at approximately a first wavelength and into a beam of light at approximately a second wavelength; illuminating the first patch with the beam of light at approximately the first wavelength; determining first transmissions from the first patch in response to the beam of light at approximately the first wavelength; thereafter substantially simultaneously illuminating the first patch with the beam of light at approximately the second wavelength and illuminating the second patch with the beam of light at approximately the first wavelength; substantially simultaneously determining second transmissions from the first patch in response to the beam of light at approximately the second wavelength, and determining first transmissions from the second patch in response to the beam of light at approximately the first wavelength; thereafter illuminating the second patch with the beam of light at approximately the second wavelength; determining second transmissions from the second patch in response to the beam of light at approximately the second wavelength; thereafter determining an XYZ color space representation of the first transmissions and the second transmissions for the first patch; and determining an XYZ color space representation of the first transmissions and the second transmissions for the second patch.