Color2Gray: salience-preserving color removal
Amy A. Gooch, Sven C. Olsen, Jack Tumblin, Bruce Gooch
ACM Transactions on Graphics, 24(3), August 2005BibTeX Citation

  @article{Gooch:2005:CSC,
title = "Color2Gray: salience-preserving color removal",
author = "Amy A. Gooch and Sven C. Olsen and Jack Tumblin and Bruce Gooch",
journal = "ACM Transactions on Graphics",
volume = 24,
number = 3,
month = aug,
year = 2005,
pages = "634--639",
}