M. F.  Carlsohn, Menze, B. H., Kelm, B. Michael, Hamprecht, F. A., Kercek, A., Leitner, R., and Polder, G., ?Color image processing?, vol. 7(17), R.  Lukac and Plataniotis, K. N., Eds. CRC Press, 2006, pp. 393-419.