A video input signal is sampled and characterized in two different color space definitions, such as a color-difference color space and a primary-color color space. The plug may be locked to the base to form a closed loop that may be used to hold merchandise. In another embodiment, the invention is a lawnmower or other lawn and garden equipment, comprising such a noise reduction shroud. Thus, compositions may be designed to optimize performance for various required gelatin concentration formulations. The torque bias modulator integrator can also be initialized to the value of the measured brake torque when the wheel velocity error signals indicate the beginning of a skid.