@article{MarEtAl08,
  author = {Marsi, S. and Impoco, G. and Ukovich, A. and Ramponi, G. and Carrato, S.},
  title = {Using a recursive rational filter to enhance color images},
  journal = {IEEE Transactions on Instrumentation and Measurement},
  volume = {57},
  number = {6},
  month = {June},
  pages = {1230-1236},
  publisher = {IEEE},
  year = {2008}
}