Patent ID: 6798904
Filing Date: 2004-09-28
Classification: H04N

Abstract:
A method for generating a plurality of color processing module fingerprints, the method comprising:using a plurality of color processing modules to generate from a set of input colors represented in an input color space a plurality of sets of output colors represented in an output color space, wherein each set of output colors represents a respective one of the plurality of color processing modules; testing the plurality of sets of output colors to determine whether each set of output colors can uniquely identify the color processing module that was used to generate that set of output colors, thereby acting as a color processing fingerprint; and until each set of output colors can uniquely identify the color processing module that was used to generate that set of output colors: adding a new color to the set of input colors; using the plurality of color processing modules to regenerate the plurality of sets of output colors from the set of input colors; and retesting the plurality of sets of output colors to determine whether each set of output colors can uniquely identify the color processing module that was used to regenerate that set of output colors.