Abstract The perceived color interactions between geometrical objects presented on a computer screen were investigated. Colors of small patches with a colored background were used. Six observation colors and three interaction colors for each observed color were presented to ten observers, who performed a matching task. The object with a color assumed to interact with its background was compared...

Considering cold, dense quark matter with two massless quark flavors, we demonstrate how, in a self-consistent calculation in the framework of QCD, the condensation of Cooper pairs induces a non-vanishing background color field. This background color field has precisely the right magnitude to cancel tadpole contributions and thus ensures overall color neutrality of the two-flavor color supercon...

In this thesis, a novel scheme for object detection in complex background scenes has been proposed.The input videos used have fixed backgrounds and static cameras. Initially median of few frames is evaluated for obtaining a proper estimate of the background.Local threshold based background subtraction is done for extracting objects from the video sequence.During sudden illumination changes, opt...