1. A method of generating a transform matrix for converting color component values from a first color region to a second color region, the method comprising: identifying a plurality of color component value sets in the first color region; for each identified color component value set in the first color region, generating a desired color component value set in the second color region; and using the identified and generated color component value sets to identify an n-by-m transform matrix for converting color component values from the first color region to the second color region.