Patent ID: 8761504

Claim:
A computer implemented method for image processing, the method comprising the acts of: transforming, by a processor, image data into at least one baseband signal and at least one difference signal in a frequency domain representation, wherein the at least one baseband signal comprises a luminance component of a captured image; minimizing the overlap between the at least one baseband signal and the at least one difference signal in the frequency domain representation; minimizing deviation of the baseband luminance signal, wherein the act of minimizing deviation of the baseband luminance signal further comprises establishing a color mixture to account for an average illuminant color change; establishing physical characteristics of a color filter array and respective color mixture based at least in part on a resulting position of a representation of the difference signal and a resulting position of a representation of the baseband signal in the frequency domain; and constraining the range of values associated with the physical characteristics of the color filter array to physically realizable values.