We
propose a new technique to automatically assign visually distinct colors to streamlines bundles. Our technique takes into account spatial positioning of bundles to
avoid assigning similar colors to neighboring bundles. This will help
researchers visually disambiguate close bundles. We show that basic
techniques simply trying to spread the colors through the available
spectrum often fail to take neighbors into consideration, and assign
visually indistinguishable colors to close bundles. Our technique is
fully automatic and stable, giving the same color assignments for any
subject with the same bundles and similar structure.