A system may recognize faces within an image by using wireless identifiers captured at the time the image was taken to determine a list of candidates for facial recognition. That is, the discrete device can comprise one or more parasitic elements, such as parasitic resistances andor capacitances. A gain factor of the filter gain module is varied by the adaptive time constant control module for every pixel in a current composite video signal. The removable hair portion of the mannequin attaches to the support base of the mannequin head with a latching system that securely fixes the hair portion to the head.